[Wayland - Kubuntu 24.04] GPU error 8704 on app startup, unable to connect to dbus

[MEMESCOEP]

Version 3.4.8-linux1.

Github Desktop has stopped launching properly under Wayland (still works just fine with X11 on the same machine). No window appears but there is an icon on the taskbar (clicking the icon does nothing). When the app starts, I get the following errors in the console (in order):

• [2:1218/234944.495683:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
• LaunchProcess: failed to execvp: xdg-settings
• [54:1218/234944.817475:ERROR:gbm_pixmap_wayland.cc(82)] Cannot create bo with format= RGBA_8888 and usage=SCANOUT
• [54:1218/234944.817548:ERROR:gbm_pixmap_wayland.cc(82)] Cannot create bo with format= RGBA_8888 and usage=GPU_READ
• [54:1218/234944.817608:ERROR:shared_image_factory.cc(999)] CreateSharedImage: could not create backing.
• [54:1218/234944.817704:ERROR:shared_image_factory.cc(765)] DestroySharedImage: Could not find shared image mailbox
• [54:1218/234944.817790:ERROR:gpu_service_impl.cc(1124)] Exiting GPU process because some drivers can't recover from errors. GPU process will restart shortly.
• [2:1218/234356.689364:ERROR:gpu_process_host.cc(997)] GPU process exited unexpectedly: exit_code=8704

These errors are thrown three times before it gives up and hangs, and they persist after several restarts/reinstalls. I didn't find any log files in $HOME/.var/app/io.github.shiftey.Desktop/config/GitHub\ Desktop/logs/. Launching from the pinned taskbar icon results in the same issue; its link is configured to run run --branch=stable --arch=x86_64 --command=start-github-desktop --file-forwarding io.github.shiftey.Desktop @@u %U @@.

Console output:

Taskbar icon:

[Lunarequest]

can you try launching with --disable-gpu?

[MEMESCOEP]

can you try launching with --disable-gpu?

It's working as expected now. I've read that some wayland apps have trouble when running on systems with more than one GPU, maybe that's the case here?

[SomeMWDev]

I have only one GPU and I'm on Fedora 41 KDE using Wayland, experienced the same problem as well.