Blank windows on some Linux WMs (Sway, BSPWM, Awesome, Xmonad, SteamOS)

[Fxzzi]

https://uploadi.ng/fazzi/jNScKfQo
as you can see here, there are white boxes and I'm unable to see the options. I'm running Arch Linux. Any suggestions?

[comp500]

Hmm, that's strange... try updating/reinstalling Java? Make sure you're not using the headless JDK/JRE.

[Dakedres]

Same issue here on BSPWM, I've had it before, but it was fixed when I switched from openj9.

Apparently it's a Java bug on non-reparenting window managers (i.e. BSPWM, Xmonad, Awesome, DWM). There's a pretty comprehensive issue for it on some swing library's repo.

I've found two fixes looking around online.

This one's supposed to work if you're using OpenJDK, I just added it to my .profile
export _JAVA_AWT_WM_NONREPARENTING=1

There's this fix too, I remember having to use it once to get IntelliJ to work, but iirc those issues manifested a bit differently
https://github.com/ThatOneCalculator/bspwm-fix-java

[dajix350]

This is still a problem for me. I am using Sway (Wayland) on Arch Linux. I tried the environment variables with no joy. Anyone know any current workarounds?

[comp500]

Other than the aforementioned NONREPARENTING env variable, I don't know. There is an issue on the Sway repository that might be helpful: swaywm/sway#595

[comp500]

Another user has successfully used _JAVA_AWT_WM_NONREPARENTING=1 on Sway - this workaround seems to still work in modern OpenJDK builds.

[comp500]

It looks like JetBrains has managed to fix the root cause of this issue in JetBrains Runtime with this patch; you can try this JDK fork at https://github.com/JetBrains/JetBrainsRuntime

I hope this can be upstreamed into OpenJDK in the future, as neither the reparenting environment variable nor a custom JVM are feasible for me to implement as a general solution.

[Merith-TK]

to make this work on the SteamDeck
install flatseal and then modify the environment variables for PrismLauncher to include the variable, it works