Arch Linux

momokrono

Member

Registered: 2016-10-27

Posts: 54

Kwin core dump after latest kernel/NVIDIA upgrade

As in title, I'm getting a KWin core dump randomly after a couple hours of uptime. In particular, system freezes for a couple of seconds, then resumes but compositing is disabled.
For some reason in .config/kwinrc the OpenGLIsUnsafe flag is set to true and setting it to false and relaunching kwin fixes the issue.

the error from journalctl:

kwin_x11[741]: kwin_scene_opengl: OpenGL 2 compositing setup failed
kwin_x11[741]: kwin_scene_opengl: OpenGL driver recommends XRender based compositing. Falling back to XRender.
kwin_x11[741]: kwin_scene_opengl: To overwrite the detection use the environment variable KWIN_COMPOSE
kwin_x11[741]: kwin_scene_opengl: For more information see https://community.kde.org/KWin/Environment_Variables#KWIN_COMPOSE
kwin_x11[27700]: kwin_xkbcommon: XKB: couldn't find a Compose file for locale "en_150.UTF-8"
kwin_x11[27700]: kwin_core: Compositing is not possible
systemd-coredump[27896]: Process 741 (kwin_x11) of user 1000 dumped core.
                                                      
                                                      Stack trace of thread 923:
                                                      #0  0x00007f09fcf61615 n/a (n/a + 0x0)

uname -r

5.10.9-arch1-1

Nvidia version 460.32.03-5

Also, in KDE setting I've selected OpenGL 3.1 for compositing, yet is OpenGL 2 that's complaining.
Is anyone else having this issue?

momokrono

Member

Registered: 2016-10-27

Posts: 54

Re: Kwin core dump after latest kernel/NVIDIA upgrade

Update: I downgraded both linux to 5.10.8 and nvidia to 460.32.4 and Kwin core dumps as well but this time I need to wait longer, roughly 3-4 hours. I'm now trying to understand if it's related to some application in particular. Also I'll try older kernels and nvidia drivers.