A little while ago I built a new PC and installed Arch Linux on it. I created a new Minecraft account, but I'm experiencing many issues with the Minecraft Launcher.
First, I'm unable to launch any version except for 1.12.5. It always says that an unexpected error occurred.
When I try to launch 1.12.5, sometimes the game will automatically go into fullscreen mode, which then crashes my game. This happens about 50% of the time. The other half of the time, the game launches normally without problems. When the game crashes this way, it gives the same unexpected error message.
Thank you for your report!
We're tracking this issue in https://report.bugs.mojang.com/servicedesk/customer/portal/2/MCL-24924 , so this ticket is being resolved and linked as a duplicate.
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