Created attachment 171448 [details] coredump SUMMARY Started since 6.1.1, kwin_wayland would crash periodically. Unable to reproduce reliably. STEPS TO REPRODUCE (not reliably) 1. Use the computer for a few days 2. Press Tab+Alt OBSERVED RESULT Kwin crashes, all programs abort SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon (available in About System) KDE Plasma Version: 6.1.2 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.0 ADDITIONAL INFORMATION
Created attachment 171449 [details] journalctl A dump of journalctl from 1minute before to 1minute after the crash. Of note, there seem to be a lot of `kwin_scene_opengl: 0x2: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)` errors. Unsure if related.
Created attachment 171451 [details] journalctl -b 0 --user-unit plasma-kwin_wayland.service
The bug is unpredictable but has happened at least 3x over the past few hours. This makes the system unstable for production at all. I am switching to my laptop in the meantime.
*** Bug 489531 has been marked as a duplicate of this bug. ***
These OpenGL warnings are unrelated and harmless, it's just Qt trying to set a back buffer where there is none. The crash is in a thread in the OpenGL driver; please report this at https://gitlab.freedesktop.org/mesa/mesa/-/issues
*** Bug 494440 has been marked as a duplicate of this bug. ***
*** Bug 496167 has been marked as a duplicate of this bug. ***
*** Bug 495678 has been marked as a duplicate of this bug. ***
*** Bug 496420 has been marked as a duplicate of this bug. ***
We have duplicates from people using non-NVIDIA cards, so it seems more likely this is a Qt issue, not an NVIDIA driver issue.
(In reply to Nate Graham from comment #10) > We have duplicates from people using non-NVIDIA cards, so it seems more > likely this is a Qt issue, not an NVIDIA driver issue. My original report https://bugs.kde.org/show_bug.cgi?id=496167 was filed with an Intel iGPU. And it started when I updated Plasma to 6.2.0 and Qt from 6.7.2 to 6.7.3. I also can reliably reproduce the freeze after hibernating the system and moving a Firefox window. Some of the changes during the last weeks changed it a bit as the system now freezes sometimes without hibernation with a freshly booted system. But hibernation is reliable. I can continue working after hibernation as long as I don't move any window. Some windows can even be dragged without a freeze, but most windows trigger the freeze. Please let me know if I can contribute anything.
I had a similar issue with the "kwin_scene_opengl: 0x1: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)" messages repeatedly showing up in the /var/log/syslog file. It caused my system to slow down, freeze or crash depending on the load and the uptime. This was resolved by adding this to the kernel boot parameters nvidia.NVreg_EnableGpuFirmware=0 It is discussed here: https://bbs.archlinux.org/viewtopic.php?id=300648