KWin main thread hanging repeatedly – RTX 5080 on Wayland
System: - Bazzite 43.20260313 (Fedora 43) - KDE Plasma / Wayland - GPU: NVIDIA GeForce RTX 5080 - Nvidia Driver: 595.45.04 - CPU: AMD Ryzen - RAM: 31 GiB - Kernel: 6.17.7-ba28.fc43.x86_64 - System is installed on an SSD (switching to NVMe2 soon)
Problem: The system freezes repeatedly and unpredictably for short periods. CPU, GPU and RAM are barely under load during the freezes. Sometimes even mouse movement is not possible.
Relevant log output (
journalctl --user -u plasma-kwin_wayland
journalctl --user -u plasma-kwin_wayland
):
kwin_wayland: The main thread was hanging temporarily!kwin_wayland: Libinput: timer scheduled expiry is in the past (-1240ms), your system is too slow
kwin_wayland: The main thread was hanging temporarily!kwin_wayland: Libinput: timer scheduled expiry is in the past (-1240ms), your system is too slow
Also spotted in the logs:
wgpu_hal::vulkan::instance: Unable to find extension: VK_EXT_physical_device_drm
wgpu_hal::vulkan::instance: Unable to find extension: VK_EXT_physical_device_drm
What I already checked: - Swap, RAM, temperatures – all fine - No I/O errors in dmesg - swappiness already set to 10
Question: Any ideas what could be the problem or what to look after? I also tried the testing branch, no difference.