[LINUX] [WAYLAND] Game freezes forever if not using Xwayland

[kkflto]

Your GTNH Discord Username

kkflt

Your Pack Version

2.6.1 2.7.0-beta1

Your Server

SP

Java Version

Java 21

Type of Server

None

Your Expectation

Game starts normally even without xwayland

The Reality

Minecraft freezes in the loading screen

Your Proposal

Be able to run without Xwayland

Final Checklist

• I have searched this issue tracker and there is nothing similar already. Posting on a closed issue saying the bug still exists will prompt us to investigate and reopen it once we confirm your report.
• I can reproduce this problem consistently by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.
• I have asked other people and they confirm they also have this problem by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.

[kkflto]

log: https://mclo.gs/NGSuLRL

[boubou19]

what happens if you use java 8 instead?

[boubou19]

also indicate your pack version, it really helps for bug hunting

[kkflto]

Using java 8 makes the game crash instantly, it doesnt matter if I use Xwayland or not . Log: https://mclo.gs/CrCz53w (without Xwayland), Log2: https://mclo.gs/B6Xc3T5 (with Xwayland) version is 2.7.0-beta-1

[chochem]

Caused by: java.awt.HeadlessException: No X11 DISPLAY variable was set, or no headful library support was found but this program performed an operation which requires it

if I had to guess I would say issue with display drivers

[kkflto]

Vanilla 1.7.10 works under pure Wayland with lwjgl3ify, +unimixins-all and java 21

screenrecord.mp4

[kkflto]

@boubou19 I've disabled the Opis Mod (and also aroma backup) that seemed to fix the loading screen issue. So there is something wrong with that mod, however, I can't still play, generating a new world crashes the game (or rather makes it disappear, it still shows as running). Update: upon entering the same world again, it worked, well for some time at least. And this time also suddenly disappears but it is still running in background.

screenrecord.mp4

[boubou19]

opis has code to generate a side window when you run /opis command. So it somewhat makes sense to mess a bit with the window manager, but other than this... no clue

[chochem]

apparently, java swing and wayland are known to not really work together well. So this is an issue well outside of GTNH. Unless someone wants to rewrite opis to not use swing.