After upgrading from F41 to F42, kwin_wayland crashes. Downgrading kwin from kwin-6.3.4-3.fc42 to kwin-6.3.4-1.fc42 fixes the issue. Fedora system is up-to-date. Kernel: 6.14.3-300.fc42.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Apr 20 16:08:39 UTC 2025 x86_64 GNU/Linux Hardware: Lenovo ThinkPad P14s Gen 5 Graphics: inxi -G Graphics: Device-1: Intel Meteor Lake-P [Intel Arc Graphics] driver: i915 v: kernel Device-2: Chicony Integrated Camera driver: uvcvideo type: USB Display: wayland server: X.org v: 1.21.1.16 with: Xwayland v: 24.1.6 compositor: kwin_wayland driver: X: loaded: modesetting unloaded: fbdev,vesa dri: nouveau,i965 gpu: i915 resolution: 1: 3840x2160~60Hz 2: 3072x1920~120Hz API: EGL v: 1.5 drivers: iris,swrast platforms: gbm,wayland,x11,surfaceless,device API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 25.0.2 renderer: Mesa Intel Arc Graphics (MTL) API: Vulkan v: 1.4.309 drivers: N/A surfaces: xcb,xlib,wayland Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr Will attach the stack trace from journal. Reproducible: Always Steps to Reproduce: 1. upgrade to F42 (so kwin-6.3.4-3.fc42 is installed) 2. reboot 3. no graphical login, kwin_wayland crash in the logs. Actual Results: kwin crashing Expected Results: kwin starting, graphical login screen appearing.
Created attachment 2087043 [details] stack trace from journald
This is an issue in Qt, reassigning.
Tested on T14s G5 (don't have a P14s I'm afraid - but it's the same MTL device). My system has a different panel (2880x1800~120Hz) Mine is from a fresh install, not an upgrade. Not seeing any issues - system is working nicely From the above I see nouveau is being used - does the system have an Nvidia card? Anything interesting in the kernel logs related to that? The nouveau driver is in much better shape than it used to be...but still has issues. Mark
Can you verify this issue is gone with https://bodhi.fedoraproject.org/updates/FEDORA-2025-3bacbc7a04?
(In reply to Jan Grulich from comment #4) > Can you verify this issue is gone with > https://bodhi.fedoraproject.org/updates/FEDORA-2025-3bacbc7a04? Yes, it works now. Thanks for the fix!