Initialization of OpenAL fails sometimes

This doesn't look like its resolved. I'm seeing this error more than 50% of the time now. Recently switched to Win10. MC is v1.8.8 (vanilla). Launcher is 1.6.44

[09:46:32] [Sound Library Loader/INFO]: Starting up SoundSystem...
[09:46:32] [Thread-6/INFO]: Initializing LWJGL OpenAL
[09:46:32] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[09:46:32] [Thread-6/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[09:46:32] [Thread-6/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[09:46:32] [Thread-6/WARN]: ERROR MESSAGE:
[09:46:32] [Thread-6/INFO]: Could not locate OpenAL library.
[09:46:32] [Thread-6/WARN]: STACK TRACE:
[09:46:32] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[09:46:32] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[09:46:32] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[09:46:32] [Thread-6/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[09:46:32] [Thread-6/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[09:46:32] [Thread-6/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[09:46:32] [Thread-6/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[09:46:33] [Sound Library Loader/WARN]: ERROR MESSAGE:
[09:46:33] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[09:46:33] [Sound Library Loader/INFO]: Starting up SoundSystem...
[09:46:33] [Thread-8/INFO]: Switching to No Sound
[09:46:33] [Thread-8/INFO]: (Silent Mode)

I still occasionally encounter this (but extremely rarely). Ingame you can do F3+S to reload the sound system IIRC, which lets you fix sounds. What might be nice is a message on the main menu saying "Failed to set up OpenAL; click here to try again", but I'm not sure how feasible that is.

Took over the confirmation from MC-76815

Could you please update the description as the important part seems to be

AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005

I am afraid you are currently mixing reports together that are related but not duplicates, for example MC-20069 describes this "Device init failed" bug whereas here only a comment contains these error messages

It's still the same issue. The text in the original post was back with Minecraft 1.4.6, and evidently they changed the output. I'll put the log from the comment as the main log (I know when I've experienced it the log was like that).

The summary of MC-79384 is "No sound when maximizing the game whille launching" - maybe that's the key for reproducing this issue ?

This sound reasonable. I always maximize Minecraft and I might regularly do it by double clicking the title bar. Although I cannot reproduce it on Windows 10 right now, because I can only maximize the window after some time (maybe the new gaming overlays of windows 10 are in the way … I don't know). But this may explain, why I have not encountered this error quite some time now; because I simply cannot maximize the window fast enough anymore.

Whatever the initialization of the sound library has to do with the window size though………

I can't remember if I've experienced it on windows 10. I feel like I have, but I can't say for sure.

Though also nowadays I use windowskey+Up rather than double clicking. Hm.

I'll go test on a windows 7 machine.

Confirmed for 16w03a

16w04a too.

Completely ignored arguments: [--nativeLauncherVersion, 286]
[14:13:25] [Client thread/INFO]: Setting user: robingravel
[14:13:25] [Client thread/INFO]: (Session ID is token:ce58daac83d34a7284a00cd8285688a5:2912b520b87049d589c564bf0a1bd5a6)
[14:13:28] [Client thread/INFO]: LWJGL Version: 2.9.4
[14:13:29] [Client thread/INFO]: Reloading ResourceManager: Default
[14:13:30] [Client thread/WARN]: Missing sound for event: minecraft:entity.snowman.ambient
[14:13:30] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:13:30] [Thread-5/INFO]: Initializing LWJGL OpenAL
[14:13:30] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[14:13:30] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[14:13:30] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[14:13:30] [Thread-5/WARN]: ERROR MESSAGE:
[14:13:30] [Thread-5/INFO]: Could not locate OpenAL library.
[14:13:30] [Thread-5/WARN]: STACK TRACE:
[14:13:30] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[14:13:30] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[14:13:30] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[14:13:30] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[14:13:30] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[14:13:30] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[14:13:30] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[14:13:31] [Sound Library Loader/WARN]: ERROR MESSAGE:
[14:13:31] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[14:13:31] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:13:31] [Thread-7/INFO]: Switching to No Sound
[14:13:31] [Thread-7/INFO]: (Silent Mode)
[14:13:31] [Sound Library Loader/INFO]: Sound engine started
[14:13:33] [Client thread/INFO]: Created: 1024x512 textures-atlas
[14:13:38] [Client thread/INFO]: Realms library version == 1.7.57
[14:13:38] [MCO Availability Checker #1/ERROR]: Couldn't connect to realms: 
[14:14:03] [Client thread/WARN]: Unable to resolve BlockEntity for ItemInstance: minecraft:shield
[14:14:06] [Server thread/INFO]: Starting integrated minecraft server version 16w04a
[14:14:06] [Server thread/INFO]: Generating keypair
java.lang.NullPointerException
	at vo.a(SourceFile:416)
	at vq.a(SourceFile:215)
	at azr.a(SourceFile:52)
	at lp.b(SourceFile:142)
	at bym.a(SourceFile:98)
	at bym.j(SourceFile:130)
	at net.minecraft.server.MinecraftServer.run(SourceFile:426)
	at java.lang.Thread.run(Thread.java:745)
[14:14:07] [Server thread/INFO]: Preparing start region for level 0
[14:14:08] [Server thread/INFO]: Preparing spawn area: 0%
[14:14:09] [Server thread/INFO]: Preparing spawn area: 36%
[14:14:10] [Server thread/INFO]: Changing view distance to 8, from 10
[14:14:11] [Server thread/INFO]: robingravel[local:E:de2c20da] logged in with entity id 124 at (18.57355755850046, 63.0, 147.57681503287685)
[14:14:11] [Server thread/INFO]: robingravel joined the game
[14:14:12] [Server thread/INFO]: Saving and pausing game...
[14:14:12] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Overworld
[14:14:13] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Nether
[14:14:13] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/The End
[14:14:13] [pool-2-thread-1/WARN]: Couldn't look up profile properties for com.mojang.authlib.GameProfile@79006073[id=2912b520-b870-49d5-89c5-64bf0a1bd5a6,name=robingravel,properties={},legacy=false]
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:71) ~[authlib-1.5.22.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:175) [authlib-1.5.22.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:59) [authlib-1.5.22.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:56) [authlib-1.5.22.jar:?]
	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache.get(LocalCache.java:3934) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821) [guava-17.0.jar:?]
	at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827) [guava-17.0.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:165) [authlib-1.5.22.jar:?]
	at bce.K(SourceFile:2745) [16w04a.jar:?]
	at bwm$3.run(SourceFile:106) [16w04a.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.net.UnknownHostException: sessionserver.mojang.com
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) ~[?:1.8.0_25]
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[?:1.8.0_25]
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_25]
	at java.net.Socket.connect(Socket.java:589) ~[?:1.8.0_25]
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:649) ~[?:1.8.0_25]
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[?:1.8.0_25]
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) ~[?:1.8.0_25]
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) ~[?:1.8.0_25]
	at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275) ~[?:1.8.0_25]
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371) ~[?:1.8.0_25]
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) ~[?:1.8.0_25]
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1146) ~[?:1.8.0_25]
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997) ~[?:1.8.0_25]
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177) ~[?:1.8.0_25]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511) ~[?:1.8.0_25]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439) ~[?:1.8.0_25]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) ~[?:1.8.0_25]
	at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:126) ~[authlib-1.5.22.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[authlib-1.5.22.jar:?]
	... 19 more
Using : vn@178b621e
Using : vn@178b621e
Using : vn@178b621e
Using : vn@178b621e
Using : vn@226330e2
Using : vn@6397c8f
Using : vn@178b621e
[14:14:34] [Server thread/INFO]: Saving and pausing game...
[14:14:34] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Overworld
[14:14:34] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Nether
[14:14:34] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/The End
[14:14:36] [Server thread/INFO]: Stopping server
[14:14:36] [Server thread/INFO]: Saving players
[14:14:36] [Server thread/INFO]: Saving worlds
[14:14:36] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Overworld
[14:14:36] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/Nether
[14:14:36] [Server thread/INFO]: Saving chunks for level 'River Pluton 4'/The End
[14:14:40] [MCO Availability Checker #1/ERROR]: Couldn't connect to realms:

检查OpenAL已安装
Check OpenAL has been installed

This My Startup Log:

[22:13:02] [Client thread/INFO]: Setting user: Tong
[22:13:02] [Client thread/INFO]: (Session ID is token:{auth_access_token}:d3f27ed7-2329-4d4e-9cb6-c4361bfced1a)
[22:13:08] [Client thread/INFO]: LWJGL Version: 2.9.4
[22:13:11] [Client thread/INFO]: Reloading ResourceManager: Default, PureBDcraft  16x MC19.zip
[22:13:13] [Client thread/WARN]: Missing sound for event: minecraft:entity.snowman.ambient
[22:13:13] [Sound Library Loader/INFO]: Starting up SoundSystem...
[22:13:14] [Thread-4/INFO]: Initializing LWJGL OpenAL
[22:13:14] [Thread-4/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[22:13:14] [Thread-4/INFO]: OpenAL initialized.
[22:13:14] [Sound Library Loader/INFO]: Sound engine started
[22:13:23] [Client thread/INFO]: Created: 1024x512 textures-atlas
[22:18:10] [Client thread/INFO]: Stopping!
[22:18:10] [Client thread/INFO]: SoundSystem shutting down...
[22:18:10] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com

Confirmed for 1.9-pre4

AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[20:31:49] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[20:31:49] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[20:31:49] [Thread-5/WARN]: ERROR MESSAGE:
[20:31:49] [Thread-5/INFO]: Could not locate OpenAL library.
[20:31:49] [Thread-5/WARN]: STACK TRACE:
[20:31:49] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[20:31:49] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[20:31:49] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[20:31:49] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[20:31:49] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[20:31:49] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[20:31:49] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[20:31:49] [Sound Library Loader/WARN]: ERROR MESSAGE:
[20:31:49] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[20:31:49] [Sound Library Loader/INFO]: Starting up SoundSystem...
[20:31:49] [Thread-7/INFO]: Switching to No Sound
[20:31:49] [Thread-7/INFO]: (Silent Mode)
[20:31:49] [Client thread/INFO]: Created: 1024x512 textures-atlas
[20:31:50] [Sound Library Loader/INFO]: Sound engine started
[20:31:53] [Client thread/INFO]: Stopping!
[20:31:53] [Client thread/INFO]: SoundSystem shutting down...

I don't have those error messages, but I am experiencing similar issues. For me it appears strongly (if not entirely) linked to launching via Steam with the overlay enabled. I would like to be able to launch Minecraft with the overlay, especially since without it configuring my steam controller is a bit more of a pain.

[21:45:44 INFO]: Minecraft Launcher 1.6.61 (through bootstrap 5) started on windows...
[21:45:44 INFO]: Current time is Mar 28, 2016 9:45:44 PM
[21:45:44 INFO]: System.getProperty('os.name') == 'Windows 7'
[21:45:44 INFO]: System.getProperty('os.version') == '6.1'
[21:45:44 INFO]: System.getProperty('os.arch') == 'x86'
[21:45:44 INFO]: System.getProperty('java.version') == '1.8.0_25'
[21:45:44 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[21:45:44 INFO]: System.getProperty('sun.arch.data.model') == '32'
[21:45:44 INFO]: proxy == DIRECT
[21:45:44 INFO]: JFX is already initialized
[21:45:44 INFO]: Refreshing local version list...
[21:45:45 INFO]: Refreshing remote version list...
[21:45:45 INFO]: Refresh complete.
[21:45:45 INFO]: Loaded 1 profile(s); selected 'Aevumas'
[21:45:45 INFO]: Refreshing auth...
[21:45:45 INFO]: Logging in with access token

@@unknown: The error messages are in the Game Output console after starting Minecraft itself, not in the Launcher console.
If you think there is a connection by starting it via Steam, please attach the Game Output console for a start via Steam and for a start the "classic" way.

Can confirm for 1.9.1:

[12:17:19] [Client thread/INFO]: Setting user: Foltrox
[12:17:21] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:17:22] [Client thread/INFO]: Reloading ResourceManager: Default
[12:17:23] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:17:23] [Thread-5/INFO]: Initializing LWJGL OpenAL
[12:17:23] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[12:17:23] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[12:17:23] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[12:17:23] [Thread-5/WARN]: ERROR MESSAGE:
[12:17:23] [Thread-5/INFO]: Could not locate OpenAL library.
[12:17:23] [Thread-5/WARN]: STACK TRACE:
[12:17:23] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[12:17:23] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[12:17:23] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[12:17:23] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[12:17:23] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[12:17:23] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[12:17:23] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[12:17:23] [Sound Library Loader/WARN]: ERROR MESSAGE:
[12:17:23] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[12:17:23] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:17:24] [Thread-7/INFO]: Switching to No Sound
[12:17:24] [Thread-7/INFO]: (Silent Mode)
[12:17:24] [Sound Library Loader/INFO]: Sound engine started
[12:17:25] [Client thread/INFO]: Created: 1024x512 textures-atlas
[12:18:07] [Client thread/INFO]: Stopping!
[12:18:07] [Client thread/INFO]: SoundSystem shutting down...
[12:18:07] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com

Confirmed for 1.9.2

Confirmed for 1.9.2

AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[LWJGL] Failed to load OpenAL64.dll: Could not open ALC device

Confirmed for 1.9.3-pre3

[21:40:00] [Client thread/INFO]: LWJGL Version: 2.9.4
[21:40:00] [Client thread/INFO]: Reloading ResourceManager: Default
[21:40:00] [Sound Library Loader/INFO]: Starting up SoundSystem...
[21:40:00] [Thread-5/INFO]: Initializing LWJGL OpenAL
[21:40:00] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[21:40:01] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[21:40:01] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[21:40:01] [Thread-5/WARN]: ERROR MESSAGE:
[21:40:01] [Thread-5/INFO]: Could not locate OpenAL library.
[21:40:01] [Thread-5/WARN]: STACK TRACE:
[21:40:01] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[21:40:01] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[21:40:01] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[21:40:01] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[21:40:01] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[21:40:01] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[21:40:01] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[21:40:01] [Sound Library Loader/WARN]: ERROR MESSAGE:
[21:40:01] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[21:40:01] [Sound Library Loader/INFO]: Starting up SoundSystem...
[21:40:01] [Thread-7/INFO]: Switching to No Sound
[21:40:01] [Thread-7/INFO]: (Silent Mode)

Confirmed for vanilla 1.9.4 with debug logging enabled (was doing packet-related stuff with a custom server, but this happened before any connection to the custom server was made):

[18:18:01.904] [Client thread/INFO]: Setting user: pokechu22
[18:18:01.934] [Client thread/DEBUG]: (Session ID is <manually censored; still printed in debug mode but that makes sense>)
[18:18:10.203] [Client thread/INFO]: LWJGL Version: 2.9.4
[18:18:12.095] [Client thread/INFO]: Reloading ResourceManager: Default
[18:18:36.141] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:18:36.379] [Thread-5/INFO]: Initializing LWJGL OpenAL
[18:18:36.381] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[18:18:36.452] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[18:18:36.454] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[18:18:36.456] [Thread-5/WARN]: ERROR MESSAGE:
[18:18:36.458] [Thread-5/INFO]: Could not locate OpenAL library.
[18:18:36.461] [Thread-5/WARN]: STACK TRACE:
[18:18:36.463] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[18:18:36.464] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[18:18:36.465] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[18:18:36.466] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[18:18:36.468] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[18:18:36.478] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[18:18:36.481] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[18:18:36.757] [Sound Library Loader/WARN]: ERROR MESSAGE:
[18:18:36.760] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[18:18:36.761] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:18:37.145] [Thread-7/INFO]: Switching to No Sound
[18:18:37.147] [Thread-7/INFO]: (Silent Mode)
[18:18:37.452] [Sound Library Loader/INFO]: Sound engine started
[18:18:49.402] [Client thread/INFO]: Created: 1024x512 textures-atlas
[18:19:02.022] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu1, volume was zero.
[18:19:30.470] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu2, volume was zero.
[18:19:35.577] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu3, volume was zero.
[18:19:59.358] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu4, volume was zero.
[18:20:02.249] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu1, volume was zero.
[18:20:04.347] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu4, volume was zero.
[18:20:32.191] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu3, volume was zero.
[18:20:40.889] [Client thread/DEBUG]: Playing sound minecraft:random/click for event minecraft:sounds/random/click.ogg as channel 71f2dbdd-420a-47c2-9c9f-58eacee0e889
[18:20:41.738] [Server Pinger #1/DEBUG]: Set listener of em@72dde36c to bkx$1@1a4e2798
[18:20:41.829] [Client thread/DEBUG]: Removed channel 71f2dbdd-420a-47c2-9c9f-58eacee0e889 because it's not playing anymore
[18:20:42.074] [Netty Client IO #0/DEBUG]: Enabled auto read
[18:20:42.077] [Server Pinger #1/DEBUG]: Disabled auto read
[18:20:42.078] [Netty Client IO #0/DEBUG]: OUT: [HANDSHAKING:0] jk
[18:20:42.094] [Netty Client IO #0/DEBUG]: Enabled auto read
[18:20:42.095] [Netty Client IO #0/DEBUG]: OUT: [STATUS:0] kd
[18:20:42.368] [Netty Client IO #0/DEBUG]:  IN: [STATUS:0] jz
[18:20:42.376] [Netty Client IO #0/DEBUG]: OUT: [STATUS:1] kc
[18:20:42.556] [Netty Client IO #0/DEBUG]:  IN: [STATUS:1] jy
[18:20:46.153] [Client thread/DEBUG]: Playing sound minecraft:random/click for event minecraft:sounds/random/click.ogg as channel 84133fba-f693-4d7b-9daf-e8c943d805ca
[18:20:47.103] [Client thread/DEBUG]: Removed channel 84133fba-f693-4d7b-9daf-e8c943d805ca because it's not playing anymore
[18:20:47.184] [Client thread/DEBUG]: Skipped playing sound minecraft:music/menu/menu3, volume was zero.
[18:20:49.312] [Client thread/DEBUG]: Playing sound minecraft:random/click for event minecraft:sounds/random/click.ogg as channel 23f08e90-4e67-497a-b1dd-aca9a1010069
[18:20:49.515] [Netty Client IO #3/DEBUG]: Enabled auto read
[18:20:49.515] [Server Pinger #0/DEBUG]: Set listener of em@338a1b7e to bkx$1@59a3bf3c
[18:20:49.517] [Server Pinger #0/DEBUG]: Disabled auto read
[18:20:49.524] [Netty Client IO #3/DEBUG]: OUT: [HANDSHAKING:0] jk
[18:20:49.526] [Netty Client IO #3/DEBUG]: Enabled auto read
[18:20:49.526] [Netty Client IO #3/DEBUG]: OUT: [STATUS:0] kd
[18:20:49.777] [Netty Client IO #3/DEBUG]:  IN: [STATUS:0] jz
[18:20:49.777] [Netty Client IO #3/DEBUG]: OUT: [STATUS:1] kc
[18:20:49.975] [Netty Client IO #3/DEBUG]:  IN: [STATUS:1] jy
[18:20:50.262] [Client thread/DEBUG]: Removed channel 23f08e90-4e67-497a-b1dd-aca9a1010069 because it's not playing anymore
[18:20:52.470] [Client thread/INFO]: Connecting to localhost, 25565
[18:20:53.077] [Netty Client IO #4/DEBUG]: Enabled auto read
[18:20:53.081] [Server Connector #1/DEBUG]: Set listener of em@1e939371 to bkp@2ac12f08
...

Nothing too interesting that's unique to the debug ones, but I do have milliseconds displayed, which might be useful.

Completely ignored arguments: [--nativeLauncherVersion, 301]
[18:54:02] [Client thread/INFO]: Setting user: robingravel
[18:54:04] [Client thread/INFO]: LWJGL Version: 2.9.4
[18:54:06] [Client thread/INFO]: Reloading ResourceManager: Default
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:block.enchantment_table.use
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.ambient
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.baby_ambient
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.death
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.hurt
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.step
[18:54:06] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.warning
[18:54:06] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:54:07] [Thread-5/INFO]: Initializing LWJGL OpenAL
[18:54:07] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[18:54:07] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[18:54:07] [Thread-5/ERROR]: Unable to initialize OpenAL. Probable cause: OpenAL not supported.
[18:54:07] [Thread-5/WARN]: ERROR MESSAGE:
[18:54:07] [Thread-5/INFO]: Could not locate OpenAL library.
[18:54:07] [Thread-5/WARN]: STACK TRACE:
[18:54:07] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[18:54:07] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[18:54:07] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[18:54:07] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[18:54:07] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[18:54:07] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[18:54:07] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[18:54:07] [Sound Library Loader/WARN]: ERROR MESSAGE:
[18:54:07] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[18:54:07] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:54:07] [Thread-7/INFO]: Switching to No Sound
[18:54:07] [Thread-7/INFO]: (Silent Mode)
[18:54:08] [Sound Library Loader/INFO]: Sound engine started
[18:54:10] [Client thread/INFO]: Created: 1024x512 textures-atlas

It happened to 16w20a.

I can confirm this. Happened both times I tried to start 16w21b, so I just use 16w20a now.
It also rarely (1/10) occurred in 1.8 and 1.7.

Confirming. For me, in 1.9.4 vanilla this happens about 90% of the time, i.e. it rarely does not happen.

Could you add Windows Vista as well?

It happened to 1.10.2 too.

[OptiFine] OptiFine_1.10.2_HD_U_C1
[OptiFine] Build: 20160630-123359
[OptiFine] OS: Windows 10 (amd64) version 10.0
[OptiFine] Java: 1.8.0_101, Oracle Corporation
[OptiFine] VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
[OptiFine] LWJGL: 2.9.4
[OptiFine] OpenGL: GeForce GTX 960/PCIe/SSE2, version 4.5.0 NVIDIA 368.69, NVIDIA Corporation
[OptiFine] OpenGL Version: 4.0
[OptiFine] Maximum texture size: 16384x16384
[OptiFine] Checking for new version
[Shaders] ShadersMod version: 2.4.12
[Shaders] OpenGL Version: 4.5.0 NVIDIA 368.69
[Shaders] Vendor: NVIDIA Corporation
[Shaders] Renderer: GeForce GTX 960/PCIe/SSE2
[Shaders] Capabilities: 2.0 2.1 3.0 3.2 4.0
[Shaders] GL_MAX_DRAW_BUFFERS: 8
[Shaders] GL_MAX_COLOR_ATTACHMENTS_EXT: 8
[Shaders] GL_MAX_TEXTURE_IMAGE_UNITS: 32
[Shaders] Load ShadersMod configuration.
[Shaders] Loaded shaderpack: SEUS
[19:41:21] [Sound Library Loader/INFO]: Starting up SoundSystem...
[19:41:21] [Thread-6/INFO]: Initializing LWJGL OpenAL
[19:41:21] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[19:41:21] [Thread-6/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[19:41:21] [Thread-6/ERROR]: Unable to initialize OpenAL. Probable cause: OpenAL not supported.
[19:41:21] [Thread-6/WARN]: ERROR MESSAGE:
[19:41:21] [Thread-6/INFO]: Could not locate OpenAL library.
[19:41:21] [Thread-6/WARN]: STACK TRACE:
[19:41:21] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[19:41:21] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[19:41:21] [Thread-6/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[19:41:21] [Thread-6/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[19:41:21] [Thread-6/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[19:41:21] [Thread-6/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[19:41:21] [Thread-6/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[OptiFine] Mipmap levels: 4
[OptiFine] Multitexture: false
[OptiFine] BetterGrass: Parsing default configuration optifine/bettergrass.properties
[19:41:22] [Sound Library Loader/WARN]: ERROR MESSAGE:
[19:41:22] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[19:41:22] [Sound Library Loader/INFO]: Starting up SoundSystem...
[19:41:22] [Client thread/INFO]: Created: 512x512 textures-atlas
[Shaders] allocateTextureMap 4 512 512
[19:41:22] [Thread-8/INFO]: Switching to No Sound
[19:41:22] [Thread-8/INFO]: (Silent Mode)
[OptiFine] *** Reloading custom textures ***
[19:41:22] [Sound Library Loader/INFO]: Sound engine started
[19:41:24] [Client thread/INFO]: Stopping!

@@unknown: While we can't accept reports for modded versions, that is the same issue as this one (and we've already confirmed it for 1.10.2). You can always workaround it in-game with F3+T (both vanilla and optifine).

According to MC-105997 this happens only after having applications like Discord/TeamSpeak open. Can anyone confirm that ?

Cannot confirm it on my hardware at all anymore. Maybe new drivers/windows/Minecraft fixed the issue for me. Teamspeak running or not makes no difference.

No; teamspeak isn't required to reproduce this issue. I suspect that in some cases teamspeak might be able to cause it but it wouldn't be the only way. (Rather, I suspect it's a case of the person having discord or teamspeak open most of the times they launch the game, meaning that most of the time that they reproduce the issue discord or teamspeak is open).

I'll wait to see if I manage to reproduce this on my computer before saying it's fixed; this bug is always hard to reproduce when one is trying to. It may vary well vary by drivers/windows install.

I have no sound and didn't want to open a report if this is ongoing. Have opened and closed game multiple times over two days and nothing. Sorry if this is a repeat but cannot find out how to resolve this.
Tried again and sound is working but will watch this thread to see if others have problems or mine re-occurs.

Why sometimes, the game cannot locate OpenAL library in the first place?

That's why the game switches to no sound mode.

Confirmed in 16w36a

16w39a too.

Just happened to 16w40a.

Confirmed in 16w41a

Still happens in 16w42a

Confirmed in 16w43a

Confirmed in 16w44a

Confirmed in 1.11pre1

Confirmed in 16w50a

Still happened to 1.11.2

Confirmed in 1.12-pre2

Confirmed in 1.12

Please do not mark unreleased versions as affected.
You don't have access to them yet.

Well, I tried. 😃

}xDDD

(Maybe shall be added as affected as soon as the release is out; probably already known it isn't fixable for release.)

_{(Love those rare, but funny moments here on Mojira} 😉₎

It seems that I can't use these commands of F3+T/S (for 10 seconds). How is that?
Also, this no-sound startup appears to happen over and over in my occasion and it isn't as rare as it should be. Is it related to the new version of the launcher?

If you're consistently getting this, rather than it randomly failing, then it's probably an issue with your actual sound setup - make sure you've got speakers enabled and unmuted, sound cables plugged in, the game is unmuted in the volume mixer, stuff like that. This issue specifically is for the random issue with OpenAL.

Also, note that F3 + T is just pressed; only F3 + C needs to be held (because the result of that is something you don't want to do accidently). If it's not working, you might need to use FN + F3 + T.

This problem happens every time on my MacOS Launcher. With no bin folder in the new launcher, I am unable to update LWJGL manually.

Marking as fixed. 17w43a updates LWJGL (and thus OpenAL), so the underlying issue should be fixed; I used a script to launch the game 116 times, and the OpenAL issue never happened.

Note that sounds are completely broken in 17w43a, but that's MC-121276, and not this bug. OpenAL does start successfully each time, so that's a success.

I'm having this problem in macOS 12.6, with a freshly installed vanilla launcher on a new machine account. I'm using only internal speakers, which work fine with other apps. It happens on every single run, not randomly. Here is the log file.

21:41:42 launcher Preparing to launch minecraft client for 1.12.2
21:41:42 launcher Checking installations.
21:41:42 launcher Minecraft client 1.12.2 is ready to start.
21:41:42 launcher Starting!
21:41:42 launcher Using default game log configuration client-1.12.xml (outputs XML)
21:41:43 bib Setting user: tntaws
21:41:45 bid Skipping bad option: lastServer:
21:41:45 bib LWJGL Version: 2.9.4
21:41:45 cev Reloading ResourceManager: Default
21:41:45 chm Starting up SoundSystem...
21:41:46 chm Initializing LWJGL OpenAL
21:41:46 chm (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
21:41:46 chm Error in class 'LibraryLWJGLOpenAL'
21:41:46 chm Unable to initialize OpenAL. Probable cause: OpenAL not supported.
21:41:46 chm ERROR MESSAGE:
21:41:46 chm Could not open ALC device
21:41:46 chm STACK TRACE:
21:41:46 chm org.lwjgl.openal.AL.init(AL.java:167)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:153)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:102)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:206)
21:41:46 chm paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
21:41:46 chm paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
21:41:46 chm paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
21:41:46 chm paulscode.sound.CommandThread.run(CommandThread.java:121)
21:41:46 chm ERROR MESSAGE:
21:41:46 chm Could not open ALC device
21:41:46 chm Starting up SoundSystem...
21:41:46 chm Switching to No Sound
21:41:46 chm (Silent Mode)
21:41:47 chm Sound engine started
21:41:47 cdp Created: 1024x512 textures-atlas

This issue has been marked fixed in 17w43a.

If it's happening every time, it's probably a configuration error on your end and not this specific bug; check 💬 community support (e.g. IRC).

It happened to me too since snapshot 18w01.

[14:48:44] [Client thread/INFO]: Setting user: robingravel
[14:48:47] [Client thread/WARN]: Skipping bad option: lastServer:
[14:48:47] [Client thread/INFO]: LWJGL Version: 3.1.2 build 29
[14:48:49] [Client thread/INFO]: Reloading ResourceManager: Default
[14:48:50] [Client thread/WARN]: Missing sound for event: minecraft:block.pumpkin.carve
[14:48:50] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:48:50] [Thread-2/INFO]: Initializing No Sound
[14:48:50] [Thread-2/INFO]: (Silent Mode)
[14:48:53] [Thread-2/INFO]: OpenAL initialized.
[14:48:53] [Sound Library Loader/INFO]: Sound engine started
[14:48:56] [Client thread/INFO]: Created: 1024x512 textures-atlas
[14:48:58] [Client thread/INFO]: Narrator library for x64 successfully loaded
[14:48:58] [Client thread/ERROR]: Realms module missing
[14:49:16] [Client thread/INFO]: Loaded 0 recipes
[14:49:16] [Client thread/INFO]: Loaded 0 advancements
[14:49:16] [Server thread/INFO]: Starting integrated minecraft server version 18w01a
[14:49:16] [Server thread/INFO]: Generating keypair
[14:49:16] [Server thread/INFO]: Reloading ResourceManager: Default
[14:49:17] [Server thread/INFO]: Loaded 466 recipes
[14:49:18] [Server thread/INFO]: Loaded 509 advancements
[14:49:18] [Server thread/INFO]: Preparing start region for level 0
[14:49:19] [Server thread/INFO]: Preparing spawn area: 0%
[14:49:20] [Server thread/INFO]: Preparing spawn area: 27%
[14:49:21] [Server thread/INFO]: Preparing spawn area: 73%
[14:49:22] [Server thread/INFO]: Changing view distance to 8, from 10
[14:49:25] [Server thread/INFO]: TextComponent{text='robingravel', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}[local:E:c8a8f2d8] logged in with entity id 297 at (439.8179094354087, 71.0, 1097.6689888719923)
[14:49:25] [Server thread/INFO]: robingravel joined the game
[14:49:28] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2484ms behind, skipping 49 tick(s)
[14:49:29] [Client thread/INFO]: Loaded 238 advancements

There isn't a AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005 in that so that's probably a different issue, but try launching with -Dorg.lwjgl.util.Debug=true in the JVM arguments (and also make sure you didn't mute the sound ingame since IIRC at one point that also enabled "no sound" mode)

https://minecraft.net/en-us/download/alternative get the old launcher so it fixes the problems.

The old launcher will not solve this problem. It is purely an issue with the library the game uses, which requires updating that library (as was done in 1.13).

I'm still having the same problems since last year, https://bugs.mojang.com/browse/MC-116891 I tried everything you name, different OS, launchers, soundcards, speakers, headphones, uninstall all java and reinstalling, uninstalling all audio drivers and reinstalling, this is crazy....