Keyboard Unresponsive on OS X

This is happening to me all the time. Almost every other key press. Why is this issue marked as resolved!?

Bryon: Yeah, seems to happen every time the game lags and you move simultaneously. The slower machine you have, the more often it happens. That's why I duplicated this issue after they closed it without fixing it.
It seems like Mojang is more interested in nice closed-stats than actually fixing the bugs of their product.
They're apparently new to issue tracking, which is not an acceptable excuse.

Please stop with the hostility. Nobody cares about stats. Mojang do not care about stats - the important thing is that the bugs get fixed. If they didn't care about bug fixing there wouldn't be tracking them.

Please also note that us Mods do not work for Mojang nor are representative of their views.

I'm not quite sure why this issue was resolved. I will re-open it pending discussions with the mod who closed it.

Any further information you can provide will be appreciated. The issues with bugs like this is that they do not affect most people - and because of that are hard to reproduce. Have you tried updating LWJGL? Bugs like this are most likely linked to the version of that.

Yes, LWJGL is unrelated in this matter and I had a long and detailed chat with LWJGL people in matters related to controls and they proved their library is unrelated to the ways using it in minecraft. Mojang blaming LWJGL and vice versa isn't getting us anywhere.

It was only a suggestion. I wasn't attempting to lame LWJGL. Have you tried updating the version regardless?

Yes, and it's entirely unrelated. Bugs like these aren't solved by hocus-pocus-updating unrelated libraries.

it happens it may be lag. just wait

Why is this one closed again? It's not resolved, and where's the open "Duplicate"? When it stops responding it does it until the window focus is forced to blur, and re-focused by focusing an other window (hence "alt" (cmd) tabbing).

..which means you'll have to wait forever and it's still not fixing itself, if that's what you thought the resolution would be.

Whoops, my fault.

Do you mind if I trash MC-2181?

Do: I don't mind. It was cloned in the first place, because this one was prematurely closed and no action could be done on this one. Otoh, copy the description from the clone or something, because this is definitely related to something getting lost due to bad threading or such; the slower the machine (or the less cpu-cycles minecraft can spend), the more often this happens.

Perhaps another work around?

it seems to be that for my OS X, it does the same thing, but I just have to click on the window to get it to be responsive again.

I can't see a correlation between the occasions when it happens, but the keyboard being unresponsive for me doesn't seem like a huge bug, just a odd nuisance.

Alden: It's a huge bug, when you get killed in the game because of it. Much more so than the tiny graphics glitches most of the bug reports submitted here are about. Also, cmd-tab won't work while in fullscreen mode, iirc neither does cmd-alt-esc, so if you don't have remote login (sshd) enabled and another machine to ssh into your computer (to run the kill-command) while minecraft is stuck binding all keys (but not responding to any and not letting the WindowServer receive them either), you have to force-reboot the machine with a power off/power on cycle; which is a MAJOR issue.

I have this problem, late 2011 macbook pro running 10.8.2. It's intermittent but frequent that the keyboard stops working; I can switch apps with my trackpad and come back and that fixes it for a second or two.

java version "1.7.0_09"
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

(I upgraded to java 7 as a hope that it would fix this problem, it existed for me in 1.6 as well.)

Yes, I've rebooted.
Yes, I've tried reinstalling Minecraft.
Yes, I've tried several different versions of LWJGL.
No, I am not running a single mod.

This happens more frequently, but not exclusively when I use a bluetooth keyboard and an additional monitor plugged into the minidisplayport. Sometimes I fire up minecraft and it works just fine, and I close the app and come back an hour later to this behavior.

I've run some dtrace scripts but they're not really showing me anything.

I've had 2 keyboards plugged in at the same time, and functionality stops for both of them. No other apps on my system have this problem, but given I'm running Mountain Lion, I can't rule out an OS issue.

I'm out of ideas here, gang. This isn't my first time at the computer rodeo, and I'm not afraid to dig in.

Matt: This has been happening for a while, and it's not OS X version specific. Happened in 10.7 as well as 10.6.

Thanks Juha-Jarmo - I haven't found much in the way of help searching around, so I thought I'd add my experience here.

It's important to note that under 10.7 on a late 2010 mbp I never once had this problem; it happened after I migrated to a newer machine.

The workaround I have is a 5-finger tap on my trackpad that brings up the dashboard, so if I'm in full-screen I can still bail out. I'm considering setting up Better Touch Tool to emulate the movement keys and see if the problem persists when triggered from the trackpad. [EDIT: This didn't work either.]

Oh, I've tried using a Belkin Nostromo n52 as well, which has its own set of drivers; when kb input goes south, so does the nostromo. I'm not sure at what layer it communicates with my machine.

Matt: this is quite certainly a bug in minecraft itself.

I agree, Juha-Jarmo! I can't wait to find a solution, either myself or here.

I picked up another game (Delver, it's sweet!) that uses lwjgl, and I experience the same problem; the lwjgl crew seems to think this is Mojang's problem, of course. What I would find more interesting than finger pointing is for both parties to sit down for an hour and pinpoint the problem.

I also have this bug sometimes, and clicking fixes it (even in full screen). Maybe somehow LWJGL thinks it has lost focus?

Finally found this on the list. I've been having problems with this since about October 2012. I found a way to get myself to move (hold alt/option) but it makes it nearly impossible to play comfortably. I hope this gets sorted out sometime soon, I haven't been able to play for so long.

Occured for me in 1.4.6.

This is still occurring for me. I can escape by using my 5-finger tap to get to the dashboard, then reselecting Minecraft.

It doesn't seem like a focus issue since mouse clicks are still interpreted.

But clicking to focus Minecraft triggers a click when in the pause menu (hover over the return to game button, Cmd+Tab out and then click anywhere in the Minecraft window).

True, but clicking in the window while keyboard input isn't making it in still registers a click. I can click all day and it doesn't care if the keyboard's input is there or not.

This is also happening for me in 1.4.6. It seems like an OS X issue since I never had this problem on any other windows machine.

Quite interesting, I always thought it was a bug of my 3rd party Keyboard mouse set... For me clicking with my mouse and moving it for a second alway fixes it.

This happens to me a lot. Have tried restarting computer, reinstalling java, force updating, different versions. I have also found a post on minecraft forums about it. Please look into it.

Uploaded a video of this glitch happening. Please check it out on youtube at http://youtu.be/DD3QOeIZRsE

I should mention that this is still happening for me in MC 1.4.7 as well :/ .

Hope this issue gets solved soon, there's plenty of people that are mac users, and they did pay for a game that they should be able to play.

Miguel: Exactly. People are behaving like minecraft was open source and free. The attitude of Mojang and their henchmen is disgusting, and it seems bug tracking is a new thing to them. They closed another unresolved bug, MC-630, which makes the game completely unplayable without really obscure key bindings. Let's see if they blame LWJGL on this too and close it without fixing. It seems like they don't really get that no matter where the bug originates, they have to either fix it directly or work-around it. Saying "we decided to include a buggy library, it's their fault" just underlines the incompetence of these Mojang people.

Vote it up then.

Well, let's be fair, this is a problem with LWJGL, as I get the EXACT same behavior in other games that use it, and the EXACT same workaround I have fixes it. Sadly, both groups of developers appear to be arrogant neckbeards and point fingers rather than work together to fix the problem. I don't think this is an incompetence problem, this is an attitude problem.

So, why do I think this is Mojang's problem? Well, for starters, is there a bigger name in games that uses LWJGL? I can't think of one. All the one-man development shops can't really do anything to get the LWJGL community to help, but Mojang has the money and clout to throw at this. If it's going to take some strongarming, might as well have the strongest arms around.

Upvoted.

Matt: To be fair, it's Mojang's issue to fix the problem. Blaming on third-party software they themselves have included in the game is just amateurish.

Juha-Jarmo, don't forget that this problem happens with other games that use LWJGL, at least for me.

I agree, though, that if they can't come up with a fix for the buggy library, they should ditch it.

(and come on, everything about Mojang is amateurish, but that's their charm 😉

Matt: The LWJGL argument would be valid, if Minecraft was a free open source game. It's not.

Also, the game is practically unplayable until they fix this and MC-630. I've soon spent more time and effort reporting the bug and fighting against incompetent moderators than playing the game itself! They just make the issue worse and this issue tracker a bloated hell, by going close-frenzy on actual unresolved issues, causing cloning and re-reporting etc.

I have never experienced this issue. I am using a Mac running OS X 10.8.x.

Juha-Jarmo: Your comment about moderators here is apt; my server admin reported a number of serious bugs, had his tickets closed as duplicates by someone that's not qualified to make those decisions, and the resulting argument ended up getting him locked out of jira. My server admin and I are 20-year UNIX systems administrators, we know all about how to debug problems with crappy libraries and where the blame lies.

My argument for working with the LWJGL developers instead of replacing the library is because reinventing the wheel is dumb. If LWJGL works for 98% of the people in the world, they should move to close that 2% instead of putting in something else that will introduce even more bugs (come on, this is Mojang after all) and cause more problems for more people.

I don't see how Minecraft not being free/open source has anything to do with it. Lots of commercial games have bugs, and lots of companies release patches for them. This isn't a new thing. It's been going on since the dawn of video games on personal computers. All the tooth-gnashing and stamping of feet like impatient 2-year-olds isn't going to fix the problem, so what we need to do s continue to gather evidence that will help them solve the problem. Make sense?

Matt: Most commercial games don't have the attitude of ignoring issues they are responsible for, even if they are responsible by proxy.

Juha-Jarmo: I disagree! Try getting a patch out of Epic 🙂

I'm getting this too. 10.8.2. It's happened on all version of Minecraft that I've played, but is now happening almost everything time I use the "w" key (hold down "w", get to where I want to go, stop holding "w", "w" now doesn't do anything). On interesting thing I didn't see anyone else mention: the program does respond to the SHIFT key, crouching in the way I'd expect from stealth mode. But it doesn't respond to any other keys. The game is currently unplayable; Cmd-Tab twice every time I move really detracts from the immersive experience :} :{.

A reboot didn't help. I haven't tried re-installing Minecraft (don't want to lose my game, and not sure how to save it).

Can anyone point me at how to update LWJGL? Based on the comment thread that seems like a chicken sacrifice worth trying.

Just follow this Tutorial.

Tails: Thanks for the pointer! Having now installed lwjgl-2.8.4 I can add the datapoint to the pool that it didn't help :} :{.

Another possibly useful debugging point: I was trying to play a bit holding down the "w" key and never letting go (i.e. always keeping moving) and I realized that the spacebar (jump) stopped working while I was still moving. This suggests that the point of breakage is the keydown event of the last w that works, and that keyup events are handled fine.

This game is unusable on the mac. Where do I get a refund?

If you really want to get a refund, go to http://help.mojang.com/customer/portal/articles/359338-mojang-refunds-policy

Why did you even buy minecraft if it doesn't work? People really need to learn to try the demo before buying...

James Clarke: Thank you. I will do that too. This game is broken.

While I completely support your right to get a refund for this bug (as several have noted, it's really frustrating and renders the game unplayable when it's active) I'll note that after a couple of days that problem magically cleared up for me. I have no faith at all that it won't come back as magically as it went away, but if you'd rather have the game than the money you might want to wait a couple of days and try again.

I'm still experiencing this issue with 10.8.2, and Java 1.6.0_37

I've rebooted before and had it work, but after a while the issue just pops up again.

Is there any way I can get diagnostic or debugging information to paste in?

Search "Terminal" in your mac. open it. place the minecraft.jar(https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft.jar) on your desktop.
And type the following inside the terminal:
"cd Desktop" followed by an enter.
"java -cp minecraft.jar net.minecraft.LauncherFrame" again, followed by an enter.
now, if you have an error, it should appear on the terminal.

P.D.cough update java cough

mid_kid, where did you get that jar file?

Perhaps he got it via here: https://minecraft.net/download (you may need to click on the "show all platforms")

epic facepalm yes, markku is right.

Thanks for providing your source, mid_kid - with all the nasty java exploits floating around out there, I think we can all agree it's best to provide the source.

What is the difference between the jar you mention above and the one that's included in ~/Library/Application Support/minecraft/bin? One would assume they'd be the same but the md5 sums don't match and the jar file that's downloaded as part of the auto-update doesn't have the net.minecraft.LauncherFrame class.

It's the launcher jar, which on OS X is at "Minecraft.app/Contents/Resources/Java/MinecraftLauncher.jar".

Thanks, James Clark!

I'll run with this pseudo-debug mode going forward to see if it points out anything obvious.

The JAR in ~/Library/Application Support/minecraft/bin doesn't know how to display login information. I don't know why. The JAR in /Applications/Minecraft.app/Contents/Resources/Java/MinecraftLauncher.jar doesn't actually contain the game. At all.

Because that way the launcher can update the main game without having to do some magic to update itself.

I used to get this intermittently (once per session), switching to another app then switching back used to solve it. Since the 1.4.7 update it happens every minute or so rendering the game unplayable.

Minecraft 1.4.7

Java(TM) SE Runtime Environment (build 1.7.0_11-b21)
Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)

ProductName: Mac OS X
ProductVersion: 10.8.3
BuildVersion: 12D54

Wait, Minecraft now runs on java 1.7 on mac?

Regardless, I have some business applications that don't run on Java 1.7 😞

I do not know how awkward mac OS X is about it, but at least on Windozes and Linux systems it is quite easy to have multiple java versions simultaneously. Even running simultaneously; like at work when I had one JRE running eclipse (old), another version JDK doing compilation/build (1.6 latest), third one running the result (1.7 latest).

Also, as the 1.6 is getting to its EOL very soon (next month!), it might be good to poke those business apps' devs to fix things to work with 1.7 asap. It should not be difficult, unless they were noobs enough to mess with the unsupported classes (com.sun.* or whatnot).

I think it's technically possible, you can specify an order of versions applications can follow to find the first compatible version. Applications > Utilities > Java Preferences.
However, I think some applications don't do that properly, and I do believe Minecraft is one of them. I do remember having to change the order to have the latest version on top, otherwise malfunctions may occur.

Folks, I'm getting the same issue, and have tried the LWJGL updates et al. I'm running Mac OS X 10.8.3 test version, with the latest solid Java 1.7 version. I've had the same issue intermittently from 10.7 up. Removing all Minecraft related files from /Applications and from ~/Library/Application Support fixes the problem some of the time. Creating a new Minecraft instance from another account fixes the problem some of the time.
I watched console for events and as soon as the bug occurs (can't move in any direction, can't jump, can destroy blocks around me) i get the following:

1/02/13 2:25:54.505 PM JavaApplicationStub[31278]: Make pbuffer: 854 x 480
1/02/13 2:25:54.509 PM JavaApplicationStub[31278]: invalid drawable

I can replicate this until the cows come home. ANY response from Mojang would be appreciated. If the problem really is in LWJGL, then sit down with the devs and try to track it down. From other posts here, that doesn't seem to be the case, but I am not a Java developer.

A simple googling with "lwjgl invalid drawable" seems to give indications that this is lwjgl or opengl problem with Mac stuff. In some cases it has been harmless, in other cases graphics won't work (but other activities do).

The "make pbuffer" in turn seems to be a harmless notification (again only for Macs, since only they need to do it) to show the size of the buffer made.

I.e. those two are apparently not related to the keyboard issue. However, if they only appear when one gets those keyboard problems... maybe.

I also have this issue, I've had is as long as I remember playing Minecraft and not on any other game.
Had this issue with both previous versions of OS X and Minecraft.
Used both an external keyboard and monitor, all freeze.
CMD-tab also works to unfreeze it, but only when I;m in windowed mode, otherwise nothing seems to work except, waiting for about 30 seconds to a minute. Then it unfreezes and everything seems fine again.
Haven't tried the lwjgl update.
But in-game this is very annoying, especially when you're on a pvp-server.
Hope this issue gets fixed soon...

I have an early 2011 MBP 2.3 GHZ Intel Core i5 with 8 GB ram. OS X 10.7.5

I'm having this issue as well.

Just started this afternoon though, been playing all week and earlier today without issue. Now I can't do anything. Tried rebooting and checked for software updates.

Every time I release the W key the keyboard becomes unresponsive and I have to cmd-tab out of the game and back in, as soon as I release the W key it locks again.

OS X 10.8.2, Minecraft 1.4.7

Loading up the Java 7u12 Developer Preview has fixed the issue so far on a limited amount of testing. Try that and I'll report back if it changes.

http://jdk7.java.net/

was having this issue, OSX 10.8.2 MC 1.4.7

loaded up Java 7u12 developer preview but now minecraft crashes, gonna try to revert back to my old java

i was able to revert to my old java, minecraft works but this bug keeps happening to me, where the keyboard will just stop working. I'll have to press the escape key a few times to be able to disconnect from the game. It seems like reinstalling and restarting are the only thing that fixes it.

I have this same problem and it's getting on my nerves. I payed for Minecraft when i was playing it on my Windows machine. I got a Mac due to school and it has been doing this ever since!

I am seeing this issue as well, in un-modded 1.4.7 in a new world. Spawned in, moved forward. Stopped. Keyboard now does not respond inside Minecraft. Switching to another app and back to Minecraft restores the keyboard until the next key press, then stuck again.

Vanilla Minecraft 1.4.7, Mid 2011 iMac, MacOS X 10.8.2, Java(TM) SE Runtime Environment (build 1.6.0_41-b02-445-11M4107)

vote this up, after the update it's happening for me all the time now

Everyone who thinks they're running Minecraft using Java 7 on OSX is most likely wrong. Oracle provided Java 7 on Mac, Apple provided Java 6. There's a difference in the way that Java 7 is installed versus Java 6 that makes it so the Minecraft.app file will not find Java 7 and instead default to the hidden Apple installation of Java 6 that is still on your computer. This is a good thing, as no current version of LWJGL is capable of running Minecraft in Java 7. This is an issue that LWJGL is working to fix, and Mojang even contracted someone to fix the problem, and he started on it. I believe he had a working version that would work with Java 7, but it still used a lot of workarounds instead of fixing the problems, so they've been working on it to fix it so it will run more natively in all versions of Java and that has made it so Minecraft cannot run with Java 7 using the latest version. For anyone wondering, here's the thread with the links to that version that you can use to run Minecraft on OSX more properly: http://lwjgl.org/forum/index.php/topic,4711.html

Even using that version of LWJGL you won't run Java 7 if you use the default launcher. I've modified the .app a little so it'll run Java 7 instead of only using Java 6, and I'm pizza2004 who posted a link to that, here's the same link again: http://www.mediafire.com/?137i1rraix5sd0a

Anyway, I saw Grum mention they'll be releasing a new version of the launcher sometime soon (possibly with 1.5) that will fix some of the problems with the launcher, and I can imagine one of those fixes will be making it run with Java 7 on Mac. They have to wait for LWJGL to mature and a new version to release however, because the most current release doesn't run properly on OSX with Java 7. Please be patient, as Mojang has actually spent money and time working on LWJGL when they have a lot of work to do getting the Modding support up and running and no extra people to assign to fixing a library that isn't their responsibility. I'm kinda disgusted with all of the people here who complain to Mojang because of something that people are actively trying to fix, but perhaps not actively sharing their progress, and perhaps not sharing what progress they do in an obvious and easy to find place.

There are those among us who have tried both java 6 and 7, and ever version of lwjgl available for download. The problem persists.

I think you're missing my point. Installing Java 7 on Mac doesn't automatically make Minecraft run using Java 7. Unless you specifically make an effort to run it with Java 7 it won't (it has nothing to do with the jar file, and if you download the minecraft.jar launcher that I believe someone linked to earlier and run that through terminal then you'll being running it using whatever version of Java your computer considers default, meaning Java 7 if you have that installed, however I can imagine that most of the people here who installed Java 7 are still using the app, which due to the change in Java can't find Java 7 and instead uses Java 6).

The version of Java isn't related to this issue though, this issue stems from Mac OS X code in LWJGL not being updated since they added support for 10.3.x by adding a lot of workarounds. As such, while it has native support on Windows and Linux, it doesn't on Mac, and uses a lot of workarounds to even function.

So, they went back to rewrite LWJGL to work properly on Mac like it does on Windows and Linux, but they only started doing that in August of last year at the earliest, and while they've gotten it fixed to work basically perfectly for Java 6, it won't yet work properly for Java 7 on Mac, and as such they haven't pushed it into the official repo yet.

Basically, no stable version of LWJGL currently has the bug fixes that have been made that fix this issue, but the version in the forum thread I just linked to does, because it has been rewritten to fix issues with Mac OS X and LWJGL. That's the only difference between OS X and the other operating systems that would cause such an issue at the moment. If you'd like to download the version of LWJGL they provide in that thread and attempt to see if it fixes the issue that's fine. Just know that you'll have to use Java 6 because Java 7 currently will not run Minecraft on Mac OS X.

No, I get your point. I also know the problem is LWJGL, which I mention in posts months ago. Most of the people complaining here are clear on these points, but thanks for chiming in, and please do vote this up!

I'm not saying you don't know the issue is LWJGL, I'm saying that they've already made it clear in other places that they're going to update the bundled version of LWJGL in either 1.5 or 1.6, and that when that happens these bugs will go away, but in the mean time I'm providing links to where you can get the in development fixes for OS X LWJGL, and trying to explain why some people are having issues, as I noticed at least one person say they installed Java 7 and it just made Minecraft start crashing.

I installed the Java 7u12 developer preview and it busted up everything, good thing there are instructions on how to revert back to old java on OSX PS VOTE THIS UP!

There is no way to properly fix it right now. There is also no proper stable build available that runs on java7.

You can follow the development and try the experimental (working for me) builds on:

http://lwjgl.org/forum/index.php/topic,4711.0.html / https://github.com/LWJGL/lwjgl/tree/osx-java7

The latest experimental build you can get from: https://www.dropbox.com/s/b6gj27dmoyo0h0j/macosx.zip

We're doing drastic launcher improvements for 1.6 and with those we will also be able to distribute different LWJGL jar+natives depending on the OS you are on. This should allow us to push out fixes faster than we can now because we won't be tied to certain LWJGL version because 'they only work on INSERT_OS_NAME.

The intention is to have everything they are doing ready for release with 1.6.

Until then, unless they push out a 100% stable version that supports how we're doing things now (read: they won't/can't) we cannot change anything and the only way is doing updates by hand.

Thanks for that, Grum. I'm looking at the procedure to update lwjgl on the wiki at http://www.minecraftwiki.net/wiki/Tutorials/Update_LWJGL and I'm seeing more required files than the two included in that zip. Would you suggest I build it myself from the git repo, or is there another procedure you'd like me to try? I'd love to test this and report back, but mixing library versions is a direct route to pain so I'm not inclined to shoot from the hip here.

Hey Matt, I've been testing these for a while, and they just recently switched to only providing the two binaries because all the others have no change from 1.8.5. So just download 1.8.5 and then paste those two files over the top of it and you'll have no problems!

Thanks Chad! To confirm, you mean I should get 1.8.5 instead of 2.8.5? I am not seeing that on sourceforge (http://sourceforge.net/projects/java-game-lib/files/Official%20Releases/) , it goes from 1.1.4 to 2.0b1, so I must be looking in the wrong place.

Oh, sorry, I meant 2.8.5, AKA the latest stable release. Silly me, I never actually paid close attention to the version number. 😛

No worries, Chad! I'll give this a spin and report back.

No joy, even using the modified launcher you posted above. I can log in, but it hangs at "done loading."

Yeah, the only person actively working to get that OSX version working properly is Kappa, who hasn't been seen since the 20th, and only has Snow Leopard, so he's completely unable to test against Java 7. I checked out the files and hacked at it a lot and was able to get a version of LWJGL that would run with Java 7 (The reason it hangs like that is because it loads LWJGL and LWJGL tries to reference JAWT, and JAWT isn't where it expects because that version of LWJGL was built against Java 6 not 7, and they've completely changed how Java 7 works and where it's located in from Java 6, so it's gonna be a difficult problem to solve) and it had a lot of issues, like needing me to resize the window slightly for any graphics to appear, the graphics being slightly offset from the top right corner creating two black bars and not properly displaying the whole screen in windowed mode (Fullscreen acted normal) and it being slower than a dog for one reason or another, meaning it took at least 2 minutes for a world to load. Use the regular launcher for now, it'll run it in Java 6, which should work, although there might be a slight drop in performance when compared to the old version of LWJGL, I can't tell if that was LWJGL or the snapshots or just my computer not liking being left on 24/7. It works perfectly with Java 6, bar a few OSX features like Lion/Mountain Lion Fullscreen, and Retina Display.

So, for now, you'll have to use the standard launcher in order to run Minecraft, and if you run it from the command line you'll have to specify that it run with Java 6 instead of 7.

Sadly, the problem persists despite the updated lwjgl files, probably because I don't even have java6 on my system anymore. I'll get 6 and try this again, although that puts me right back at square 1 where I started the troubleshooting.

You don't have Java 6? That's a horrible idea. Java 6 isn't meant to be deleted off the system. Java 6 obviously won't work as an internet plugin anymore, but the VM should still be there. Unless you manually went into the system folder and deleted it you still have Java 6 though. It won't run at all with Java 7, it gets to the done loading part, hangs for a moment and then crashes with an error about JAWT not being found. If it's just hanging on a black screen without crashing you have to wait for a while, and if it runs then you're using Java 6, not 7. My guess is that unless you installed the JDK of Java 7 it's still running it in Java 6 even with my launcher, although I'm not certain of that. The reason I think that is just that otherwise running the Minecraft launcher jar file that they linked to before my launcher would have definitely run with Java 7 if you had it installed in a way that allows desktop programs to run with Java 7. Meaning it would have crashed and you'd have been unable to run it at all with that launcher, no matter what version of LWJGL you used.

So, basically, you still have Java 6, you just need to wait a while for the program to load now, and you might have Java 7, but only as an internet browser plugin, so the only way to use it would be through a 64 bit internet browser (Chrome won't work because it's only 32 bit.) My main advice is to just let it sit there 'hang'ing for about 5 minutes to see if it loads or crashes.

It's possible I have some java6 remnants but I was pretty thorough about it.

You don't have to take my word for it, here's a pic of my java preferences pane: http://cl.ly/image/133D3v2i0H1d
And, java -version from the console:
IG-88:~ matthewmensch$ java -version
java version "1.7.0_09"
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

<edit> aha, I found /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java so it's entirely possible Minecraft is using that while the system is not aware of it otherwise (per the preference pane.) This was a while ago, I didn't document what I had done. It's definitely what Minecraft is using, as renaming the directory causes Minecraft to fail to start whatsoever.
java version "1.6.0_41"
Java(TM) SE Runtime Environment (build 1.6.0_41-b02-445-11M4107)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-445, mixed mode)

So I get to the loading part, it never crashes or black-screens, it just hangs. I let it sit for 5 minutes, then I killed it.

Deleting Java 6 was a bad idea, as Java 7 isn't meant to replace it, but that's the file that has the Java 6 JDK, so anything else you may have deleted may have in fact been Mac's system file necessary to run any version of Java properly. As you say other stuff still runs that's unlikely. But yeah, Java preferences in the preferences app is an Oracle thing, it can only detect new Oracle versions of Java, and I think technically only the internet plugin at that. I want you to go to application/utilities and run the console app and give us the output when you try to log into Minecraft.

Edit: Yeah, you don't have the Java 7 JDK installed, so Minecraft probably can't even detect Java 7 period. At least, that's my guess.

I have a long, negative history with Java, which I will keep to myself. Suffice to say, I've never felt anything but glee for deleting java. That said, I'm not kidding that other java stuff works fine, be they remote consoles to servers or what have you.

Console doesn't say squat about Minecraft, unfortunately. Console and I have become fast friends since the update to Moutain Lion, which is when this problem started for me (as well as a move to new hardware.)

I'm trying to force a java6 update by moving /System/Java to Java.bad which will hopefully restore anything.

I have been having this problem intermittently. I get it when I am using an external keyboard but not when I am on the standerd keyboard of my mac laptop.

A fresh install of java6 didn't help me.

Are you able to start up Minecraft now at least? Once they get most of the kinks worked out in a way that allows LWJGL to run properly on Java 7 they might be more willing to focus on squashing bugs like this. Either way, LWJGL on Mac (and quite frankly Java in general really) seems to be limited in what it can do. We're only going to see more issues as things migrate from Java 6 to Java 7 and into the harsh environment of things Apple only grudgingly allows on their system rather than actively supporting.

Hi Chad,
I can start minecraft and even log in, but the original issue persists. I wonder if running it in a win7 vm will yield better results? Or even CentOS.

IS the minecraft window focused when you can't press any key?

...yes. ಠ_ಠ

At least it is for me.

hmm.. sounds weird, sometimes the backspace button deletes the entire word for me when I'm typing in chat or in a book or anything, maybe it has something to do with this issue...

I'm having the same issue right after I downloaded Mountain Lion. ive check the web for the last 6-7 hours and I cant find anything. Ive deleted the game multiple times as well as java and LWJGL files. Ive also changed keyboards (wired,wireless, mac and hp model! so now what is there a fix or am i out of my 30 bucks? Does Mojang really recognize this problem or are they gonna sweep it under the rug? For a game played by MILLIONS of people shouldn't there be a better support center instead of them picking the question they can easily answer? Dont take this as a shot at them im just wondering if there is a better way to get stuff done instead of having college kids doing doin their(MoJANG) jobs for them?

Billy, Mojang does acknowledge this as an actual issue, and they're working on it, but most of the issue is with LWJGL. If you look up in the thread there is a link (https://www.dropbox.com/s/b6gj27dmoyo0h0j/macosx.zip) that will allow you to download a "working beta" version of LWJGL that should fix or minimize these issues, just replace the files in the BIN folder in your ~/Library/Application Support/minecraft/ folder.

Hey Billy,
A bunch of us are equally frustrated but you came just in time! Both Mojang and the LWJGL crew are now aware of the problem and working on fixing it - it's no easy task. The best thing you can do now is vote up the issue at the top of this page.

I'm with you- my upgrade to a new mbp with mountain lion started this for me, and it's been months since I've been able to play. I've tried every suggestion I can find here, in the LWJGL forums, Minecraft forums, and extensive googling.

The file Shaun mentions didn't work for me, sadly, but I wish you good luck with it.

You're not the only person thinking "hey, Mojang made millions on this game, maybe they could hire some more developers to help fix these things!" but we have to remember that the problem is with software that Mojang uses, not software they created. Kudos to them for trying to help fix the problem.

Ive also tried that link mentioned with no avail I'll just use my school comp for now good thing I just picked up an Hp for school work!

Shaun did you not read my post fully? I said I have deleted the LWJGL files Ive also replace them with said files and its worse if anything! One of the main issues looking through hundreds of reply's to this issue on other forums is people don't read. We have change LWJGL we have rebooted we have reinstalled the game we have used java 6 and 7 and we have done everything we can slight of buying a pc! Another issue is PC players giving there two cents its clearly not doing this on pc running windows granted there have been a few cases but were resolved pretty quick and easy! Mine was working fine till I updated and upgrade my system to mountain lion. Im not blaming anyone but i know that any other platform including consoles this issue wouldn't fly! Neither would this lack of response or support last i checked one person from MOJANG commented on this post and this post was opened on Oct 25 2012 and didn't get a reply from MOJANG till Feb 28 2013 and that's a damn shame when you've made $80 million off the game its self( this isn't including the t-shirts, toys and other merchandise.) Look who ever is at fault for bad codes or whatever needs to look it over and they need to talk to each other as well! Sorry for the rant just get mad when I'm at a lost or feel like I just got duped outta my money!

P.s Tweet Notch everyday till you get a response on the issue im sure if enough of us do it he will answer someone ,,,@notch

Billy Zepada: sorry to dissapoint. This is not a support center.

It's a place where we as developers look at issues people report and we try to fix as many as we can.

If you claim the hanging input devices persist after trying the osx-java7 alpha libraries you should create an issue on the lwjgl's github page: https://github.com/LWJGL/lwjgl/issues

It's rather sad to say, but there is absolutely nothing Mojang can do to fix those issues as they reside outside of Minecraft and thus influence of Mojang.

I know this isn't a support page cause you clearly don't have one, But hey finally got a reply fro mojang

Umm… yes I did read your post fully, all you said was that you deleted the files, never mentioned that you replaced them with the files that I had mentioned. and tweeting to notch every day won't fix anything, as if from what I remember, this is now jeb and dinnerbone's thing, sure he'd be interested to hear, but then, this isn't a minecraft issue, unless they want to remake their own LWJGL and sidestep the people who develop that library.

Let me start off by Apologizing to Mojang and Shaun! I was out of place for my rants and I'm Sorry! Mojang sorry to bad mouth you and im sure the issue has been looked at! Shaun you're right i didn't clearly say that i have tried that file so im sorry for singling you out when you tried to help! Sorry i was a jerk had a bad week and took it out on here for no clear reason, But i really hope this problem has a solution soon.

Billy: thanks!

Also the issue has been created on: https://github.com/LWJGL/lwjgl/issues/18

Yeah that's me as well I took some Info from here and made a report cause I couldn't locate any other stating this issue hopefully they don't close it!

I tried moving the files (liblwjgl.jnilib and lwjgl.jar) from the archive mentioned in #50866 into ~/Library/Application Support/minecraft/bin and am still having the same issue – Minecraft now crashes at the Mojang screen. Here's what Java's outputting (I have both Java6 and Java7 installed):

haze:Java aendrew$ java -version
java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01-447-11M4203)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-447, mixed mode)
haze:Java aendrew$ java -jar MinecraftLauncher.jar 
java.io.IOException: Cannot run program "javaw": error=2, No such file or directory
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
	at net.minecraft.MinecraftLauncher.main(MinecraftLauncher.java:31)
Caused by: java.io.IOException: error=2, No such file or directory
	at java.lang.UNIXProcess.forkAndExec(Native Method)
	at java.lang.UNIXProcess.<init>(UNIXProcess.java:53)
	at java.lang.ProcessImpl.start(ProcessImpl.java:91)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
	... 1 more
Exception in thread "Thread-8" java.lang.UnsatisfiedLinkError: org.lwjgl.DefaultSysImplementation.getPointerSize()I
	at org.lwjgl.DefaultSysImplementation.getPointerSize(Native Method)
	at org.lwjgl.Sys.<clinit>(Sys.java:113)
	at net.minecraft.client.Minecraft.F(SourceFile:1976)
	at asz.<init>(SourceFile:20)
	at net.minecraft.client.Minecraft.<init>(SourceFile:75)
	at asq.<init>(SourceFile:38)
	at net.minecraft.client.MinecraftApplet.init(SourceFile:38)
	at net.minecraft.Launcher.replace(Launcher.java:134)
	at net.minecraft.Launcher$1.run(Launcher.java:78)

This essentially makes an otherwise great game unplayable on the newest versions of one of the most popular operating systems... Sigh...

I just reverted back to snow leopard and all is fine ...I'll go back to Mountain Lion once there's a fix!

well I there is stll no fix for this bug? I have a grandson begging for a fix to this. any hope for a fix or progress.....?

As of now no but theres word of one coming but no date yet

This essentially makes an otherwise great game unplayable on the newest versions of one of the most popular operating systems... Sigh...

Way to make drama and overstate the popularity of an OS. Also if you plan to start the launcher like that, give it enough memory, then you will not get that error.

and now updating to 1.5.1 kills all of the progress that I made by switching the lwjgl.jar file and pretty much brought it to the point where I can walk in a straight line, but the moment i press one key, all other input from the keyboard is ignored.

In the game, hold W.
Then hit Cmd-Tab
Boom. Sticky Keys in OS X!

I have a MBP running 10.8.3, and Minecraft 1.5.1.

This just started to affect me. I have been playing Minecraft for 71 hours a day since the early betas, and have not previously seen this problem. The game is now totally unplayable. A few seconds of movement, and the keyboard becomes unresponsive.

That is not entirely true. control still works to display players in multi-player games. Shift still works to sneak. Space bar still works, but it is delayed for a second or two.

Check this out. If I join a game and immediately open chat and start typing, I can type away forever. Until I hold down the 'w' key and release it. Then it locks up there too.

[WORKROUND] If I remap my keys, say, use the arrow keys for movement, and the keypad-0 for jump, r-control for sneak, etc, then I do not get this problem! I haven't seen anyone else mention this workaround.

Update! Yeah, so switching keys around helps a bit, but it still has issues. After a while the arrow keys start acting like the space bar did - they take a second or two to register. Not really a fix.

However, I found a better workaround, that hopefully sheds some light on the problem. My computer is a MacBook, but I have a keyboard, monitor, mouse, etc plugged into it. If I unplug the keyboard and use the built-in keyboard, it totally fixes it. I only have this issue with a USB keyboard plugged in.

@Harold — Weird, I had the issue ("Had", because I've rebooted since then and haven't experienced it except very intermittently, and then I just need to cmd+tab back and forth to fix it) without any peripherals plugged in. Maybe there're two separate issues causing similar symptoms?

I just purchased a new iMAC for my 10 year old son, specifically to play Minecraft, as he has just joined the Minecraft Club at school, and is totally into it. I am thinking of returning the iMAC since we have this issue. I have spent a full day, and spoke with three AppleCare technicians, one a senior technician, and all three tried very hard to help me find a way for this to work to no avail. My issue is identical, The first key I press, W walk forward, S backwards, etc., works no problem. However once I lift my finger from that key, the keyboard becomes unresponsive except for the escape key, which allow me to quit the game. I have tried adjusting "sticky keys" under keyboard preferences and it did not work. I suspect a Java problem, and that perhaps running an older version of Java would fix it, but when I spoke to the AppleCare technician I was warned not to do that, and that it was a major security issue, so I did not. Should we revert to snow leopard? I just spent a fortune on this computer and I hate to mess it up. Please, any advice?

Same problem started for me this afternoon (new model iMac, OSX 10.8.3, Minecraft 1.5.1). I've been running Minecraft fine for several months, even played for a couple of hours this morning with no problem. Going into the game this afternoon, pressing any one key works fine (e.g. W to move forward) then all keys become unresponsive. Happens in Single and Multiplayer. The only other key that seems to work is holding ESC for about 2 seconds which opens the settings menus. Mouse responsiveness is fine. I updated the LWJGL files per some forum suggestions but no dice (no better, no worse). I am using a wireless bluetooth keyboard, haven't tried switching to a different input device yet. Thanks for any attention you can give this problem.

It's rather sad to say, but there is absolutely nothing Mojang can do to fix those issues as they reside outside of Minecraft and thus influence of Mojang. (Source)

Is that really true though? Mojang profits from the open source LWJGL library. I can't imagine it would break Mojang financially to either assign a developer to work with LWJGL upstream or to issue a bounty for a fix. If not for Mojang's paying customers, then at least in the spirit of open source software.

The Mojang home page says, "Minecraft PC edition is about to hit 10,000,000 sales." So, after massive commercial success using an open source library, you're going to belittle paying customers who use an OS with "overstated" popularity for being frustrated that their purchase isn't working as expected?

Is that really true though?

Yes? We cannot control the LWJGL project nor do we want to. We just want to see it live and we're making sure they can.

From what I've seen most people who report issues with external keyboards/weird keymaps (that apparently change how shift work o.O). The keyboard handling is being done through AWT and apparently it doesn't properly handle these external keyboards in some way. Also some people have reported 'focus' issues with the launcherframe surrounding the canvas the game sits on.

For 1.6 we're moving away from the AWT input and the extra canvas around the game, this should hopefully solve many of these issues.

I'm been working on that code for the last week now and it seems to behave fine (but i've never actually had issues myself sofar :/)

I think for now trying the workarounds (no weird keyboardmapping, no external keyboards) people suggest might be the best option and meanwhile we're working towards 1.6 ASAP.

Sadly, I have this issue with my macbook pro's built in keyboard as well. However, sometimes if I reboot 3 times and then start Minecraft, I will not have this problem. If I put my mac to sleep and wake it up, the problem returns though.

I've tried using a number of other keyboards, wired and unwired, and even a nostromo n-52 with its own set of drivers, same problem.

Unbelievably- my 10 year old son has just solved this mystery. As it
turns out, Best Buy installed an Internet Security Software called
Webroot - Secure Anywhere- which is a required bundled purchase with
their tech support package. He was able to figure is out, when he
realized that when he downloaded Minecraft on our computer, we got a
pop-up "suspicious activity detected" and when he downloaded it on the
computer in the store - everything worked perfectly, and he never got
that error message. If you disble Webroot it will work like a charm. We
actually had Best Buy uninstall it, since it was not needed in the
first place.

Unbelievably- my 10 year old son has just solved this mystery. As it
turns out, Best Buy installed an Internet Security Software called
Webroot - Secure Anywhere- which is a required bundled purchase with
their tech support package. He was able to figure is out, when he
realized that when he downloaded Minecraft on our computer, we got a
pop-up "suspicious activity detected" and when he downloaded it on the
computer in the store - everything worked perfectly, and he never got
that error message. If you disble Webroot it will work like a charm. We
actually had Best Buy uninstall it, since it was not needed in the
first place.

I have this issue on my MBPr, using the built in keyboard. After pressing several keys (walking, jumping etc) Minecraft stops listening to the keyboard. The only way to continue is to alt-tab out and back in. In full-screen mode there's no way to escape.

java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01-447-11M4203)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-447, mixed mode)

@Grum (Erik Broes)

I think this is more a Java (AWT/Swing)/OSX issue than a lwjgl issue. The reason I think that is because I'm also a developer, not a game developer, but I have been following Notch's Prelude of the Chambered and Catacomb Snatch code to see how to do things like keyboard input in Java. I am seeing the exact same thing in my code and I'm only using pure Java AWT/Swing. I also see the issue reproduced when I run the Mac version of Catacomb Snatch and when I build Prelude of the Chambered on my Mac. I hadn't tied it back to the issue I had experienced in Minecraft, however, until I found this bug report. Now I realise it is all the same. And it definitely seems to be related to holding down the keys continuously.

Well this is a shout out to Liz Cople and her 10 year old......I also bought a Mac pro at best buy with geek squad and Web root installed. When I followed Liz's advice (see past comment) and disabled Webroot security...... works like new.......and grandson very happy.

I am so happy others were able to benefit. You are welcome.

In a message dated 4/11/2013 9:37:52 P.M. Eastern Daylight Time,
[email protected] writes:

Jon Morrissey
(https://mojang.atlassian.net/secure/[email protected]) commented on MC-483
(https://mojang.atlassian.net/browse/MC-483)
Keyboard Unresponsive on OS X
(https://mojang.atlassian.net/browse/MC-483)

Well this is a shout out to Liz Copple and her 10 year old......I also
bought a Mac pro at best buy with geek squad and Web root installed. When I
followed Liz's advice (see past comment) and disabled Webroot security......
works like new.......and grandson very happy.

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Uninstall Webroot Security software if you have it. Best Buy uninstalled it
and now it works perfectly!

In a message dated 4/7/2013 7:11:02 P.M. Eastern Daylight Time,
[email protected] writes:

Dan Milne
(https://mojang.atlassian.net/secure/ViewProfile.jspa?name=dkam) commented on MC-483 (https://mojang.atlassian.net/browse/MC-483)
Keyboard Unresponsive on OS X
(https://mojang.atlassian.net/browse/MC-483)

I have this issue on my MBPr, using the built in keyboard. After pressing
several keys (walking, jumping etc) Minecraft stops listening to the
keyboard. The only way to continue is to alt-tab out and back in. In full-screen
mode there's no way to escape.
java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01-447-11M4203)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-447, mixed mode)

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Sadly, the problem persists for me.

I use a Mac, and often my keyboard will become unresponsive while playing. For the most part this is not a problem. Clicking with the mouse reliably makes it functional again. However I can imagine situations where it would be unfortunate/frustrating.

In 1.5.1 I had this problem occasionally after first starting the game. It would usually not happen again during that session once I tabbed out and back in.

Now with 1.5.2 it's happening consistently. If I tab out, then tab back in it works for a second, then locks up again.

I've found that if I tap the keys for very short periods it will work, but once I hold a key down (like W) it won't let me press anymore keys. Once I release W, it won't even let me use the W again.

I have the same problem. Clicking the mouse seems to work.

I have this same problem - like Michael Barrett it was intermittent in previous versions but now in 1.5.2 MC is completely unplayable. I walk 5 blocks and completely lose keyboard.

Hardware:

iMac 27-inch, Late 2009
Processor 2.8 GHz Intel Core i7
Memory 16 GB 1067 MHz DDR3
Graphics ATI Radeon HD 4850 512 MB
Software OS X 10.8.3 (12D78)

Did anyone having this issue try out the new launcher http://mojang.com/2013/05/minecraft-snapshot-13w19a/ ?

While I do not want to suggest that my result is the same as anyone elses, I think that in my case it may not be a problem with Minecraft but instead an interacting with other apps on the Mac. The other day this started happening again. After restarting the game a few times, I decided to see if there was another app that was causing the problem. I couldn't find anything right away, so instead I shut down all the other apps running on my Mac. Sure enough after that the problem started happening. I'm wondering, if in my case, there might be another app that is quickly stealing focus in some way.

Anyway, I suggest that others try what I have when they see this issue. Perhaps it'll help them as well.

BTW, after I did this, I later started up all my usual programs and I didn't have anymore issues.

I have not tried the latest launcher as I tend to wait for the full releases before upgrading.

The new launcher can also be used also with current release version 1.5.2 without interference to the current installtion. All the files go into new directories. If the new launcher doesn't suit, simply delete it and keep on using the old one...

@Kumasasa - yes the new launcher fixed the problem for me in single player mode. Is there a server version of minecraft-snapshot-13w19a? I play on a local LAN in my house.

@Darren Newton: The link to the server is here: http://mojang.com/2013/05/minecraft-snapshot-13w19a/

@Kumasasa yup that seems to have fixed the issue for now.

Awesome!

In a message dated 5/11/2013 2:45:31 P.M. Eastern Daylight Time,
[email protected] writes:

Darren Newton
(https://mojang.atlassian.net/secure/ViewProfile.jspa?name=DarrenN) commented on MC-483
(https://mojang.atlassian.net/browse/MC-483)
Keyboard Unresponsive on OS X
(https://mojang.atlassian.net/browse/MC-483)

@Kumasasa yup that seems to have fixed the issue for now.

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Resolving this ticket as fixed.

Hi Kumasasa,
Can you wait until a few more people report that it's fixed before closing this? I see exactly one person saying it's fixed and over 100 reports of it being broken. Seems like it might be too soon to call it fixed.

I'm happy to report that my first run of this version with the new launcher appears to work for me, but I've seen this before and I need to test it again after I snooze my laptop.

Good work team!

[edit] Even happier to report that this problem has gone away for me after a couple reboots, a couple sleeps, and using an external keyboard and mouse.

I can also confirm that this issue has been fixed. Finally, I can play Minecraft again! Thanks!

This are yet four people confirming the fix. Enough for keeping this ticket as fixed 🙂

I have determined that if I run the latest release (1.5.2) the problem exists, but not in the latest snapshot.

Do you start the 1.5.2 with the new or the old launcher ? Should be fixed too with new launcher and 1.5.2.

I start 1.5.2 with the new launcher, connect to a 1.5.2 server, and the problem persists. I can then start the latest snapshot with the new launcher, connect to an ssp world, and no problems! I have tried 1.5.2 ssp on some of my old worlds and I don't get the problems, but it's repeatable with smp.

This still happens to me, though not very often.

Clicking on a block makes my keyboard work again.

From my experience, the "WEB ROOT" Security software that Best Buy installs
as part of their service plan is what causes the entire issue. If you
uninstall Web Root, you will no longer have the issue.

In a message dated 5/13/2013 5:24:01 P.M. Eastern Daylight Time, jira@moja
ng.atlassian.net writes:

Matt Mensch
(https://mojang.atlassian.net/secure/ViewProfile.jspa?name=themensch) edited a comment on MC-483
(https://mojang.atlassian.net/browse/MC-483)
Keyboard Unresponsive on OS X
(https://mojang.atlassian.net/browse/MC-483)

Hi Kumasasa,
Can you wait until a few more people report that it's fixed before closing
this? I see exactly one person saying it's fixed and over 100 reports of
it being broken. Seems like it might be too soon to call it fixed.
I'm happy to report that my first run of this version with the new
launcher appears to work for me, but I've seen this before and I need to test it
again after I snooze my laptop.
Good work team!

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Hi Liz,
Thanks for your suggestion, but I didn't buy my mac at Best Buy, nor do I have their spyware installed. 🙂

actually, it should be noted that Macs bought at best buy don't come preloaded with spyware and should be the same as those sold through Apple directly.

Is there a way to get it to work without uninstalling webroot?

Webroot may be causing related issues for some users, but that doesn't appear to be the primary cause of the problem noted here. I also did not buy my Mac at Best Buy, nor have I had it serviced there. The fix, according to Kumasasa, is to use the new launcher.

As Kumasasa noted above, you can download the launcher here: http://mojang.com/2013/05/minecraft-snapshot-13w19a/

I personally have not seen the problem recur since using the new launcher, either running the latest snapshot, or with the 1.5.2 release. Though, since the issue was intermittent – for me, it might happen every minute or two, or every twenty minutes – so it's difficult to confirm for sure without a lot of playing time. It seemed to happen only when holding down a key for an extended period of time, and I've spent a good ten minutes mashing keys as long as possible to try to recreate the issue and haven't been able to do so.

Alright, thanks a bunch!