New launcher 2.x fails without any error

Also found the beta version: https://launcher.mojang.com/download/Minecraft-beta.tar.gz, but same issue.

I'm having the same issue. I downloaded the undocumented tarball for "Other Linux" from <https://www.minecraft.net/en-us/download/alternative/> because the link from the official minecraft.net navbar <https://my.minecraft.net/en-us/store/minecraft/> did not load.

I extracted the minecraft-launcher folder to /opt, and ran it with ./minecraft-launcher but it quit without any console output. It makes this log in ~/.minecraft/launcher_log.txt:

[Info: 2019-10-18 00:46:22.840418332: LauncherMain.cpp(134)] Running Launcher
[Info: 2019-10-18 00:46:22.843108245: LauncherMain.cpp(50)] Initiated models
[Info: 2019-10-18 00:46:22.843127962: NetQueue.cpp(202)] NetQueue: Setting up.
[Info: 2019-10-18 00:46:22.843207167: LauncherMain.cpp(59)] Initiated launcher controller
[Info: 2019-10-18 00:46:22.843214158: NetQueue.cpp(207)] NetQueue: Initiating shutdown.
[Info: 2019-10-18 00:46:22.843452199: LauncherMain.cpp(161)] Initialization completed
[Info: 2019-10-18 00:46:22.843509235: LauncherMain.cpp(169)] Exiting new Launcher process

EDIT:

The above error was caused by a separate instance of the launcher running. (It quits without error when there is more than one instance running)

Now when I run the launcher, it brings my browser window in to focus for some reason, and then outputs these messages:

[1017/181929.598700:ERROR:sandbox_linux.cc(346)] InitializeSandbox() called with multiple threads in process gpu-process.

(minecraft-launcher:19160): Gdk-WARNING **: 18:19:29.684: gdkwindow-x11.c:5633 drawable is not a native X11 window
[1017/181929.729854:ERROR:cache_util.cc(134)] Unable to move cache folder GPUCache to old_GPUCache_000
[1017/181929.729887:ERROR:disk_cache.cc(172)] Unable to create cache
[1017/181929.729903:ERROR:shader_disk_cache.cc(601)] Shader Cache Creation failed: -2

Here is a pastebin with the contents of ~/minecraft-launcher/launcher_log.txt:

https://pastebin.com/0YLG4EDG

I am having the same problem on my Gentoo system (running openJDK 11.0.3_p7-r2).  I have tried both the .tar.gz and .deb package with the same result.  However, the same launcher runs fine when installed on Ubuntu 16.04 LTS.  Here is ldd output from my Gentoo system:

linux-vdso.so.1 (0x00007ffc5e3c3000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007fe63b350000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fe63b328000)
libstdc+.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/8.3.0/libstdc+.so.6 (0x00007fe63b120000)
libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/8.3.0/libgcc_s.so.1 (0x00007fe63b100000)
libc.so.6 => /lib64/libc.so.6 (0x00007fe63af30000)
/lib64/ld-linux-x86-64.so.2 (0x00007fe63b380000)
libm.so.6 => /lib64/libm.so.6 (0x00007fe63ade0000)

Galen, thank you for pointing me to ~/.minecraft/launcher_log.txt!  Once I looked there, I found a log message indicating that I was missing gconf, and once I installed that, the launcher started.

Oh my, same here: "Failed to load liblauncher.so: libgconf-2.so.4:" Easy to fix luckily:

zypper in gconf2

Ayyway. gconf is kind of old, so if this is the new launcher using dconf would be better to get an out of the box experience.

Please consider adding a simple README to the releases that tell version, dependencies and commandline args. To make it work, I had to run it as:

./minecraft-launcher --workDir $HOME/Minecraft/data

Hello, I will be closing this issue as we have now removed the gconf dependency for the Minecraft Launcher on Linux. If you are still experiencing similar issues, please open a new bug. I hope you all got it sorted!