| Summary: | kwin_wayland causes 100% CPU on Fedora 40 and renders it unusable | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | Jannik Rehkemper <system> |
| Component: | xwayland | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | major | CC: | kdedev, nate |
| Priority: | NOR | ||
| Version First Reported In: | 6.1.5 | ||
| Target Milestone: | --- | ||
| Platform: | Fedora RPMs | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
This is the same as bug 486214. Please follow that report for updates on this issue. Thanks! *** This bug has been marked as a duplicate of bug 486214 *** |
SUMMARY I'm using Fedora 40 with the 6.10.11 Kernel. As soon as the graphical interface starts (e.g. graphical login) the whole system grinds to a near hold. The mouse reacts only once or twice a second. Keyboard inputs are delay by about a second and sometimes registered multiple times, which makes it near impossible to use the system. In htop i see that /usb/bin/kwin_wayland is using all 16 threads at 100% and it is not going down over time (at least not in the first 30 minutes). I tried changing to i3 which works fine, so i assume that this is an issue with KDE? The kernel-logs look good to me and the journalctl mostly shows warning like "error creating screencast Could not find window id {..." STEPS TO REPRODUCE 1. Booting the System 2. Problem begins as soon as the login screen is rendered OBSERVED RESULT 100% CPU Load and delayed mouse and keyboard input. EXPECTED RESULT Low CPU usage at idle and fluent mouse and keyboard input. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 40 6.10.11 KDE Plasma Version: 6.1.5 KDE Frameworks Version: can't check since the settings app won't open Qt Version: can't check since the settings app won't open ADDITIONAL INFORMATION CPU: Ryzen 3700x GPU: MSI NVidia 3080 Mainboard: Aorus x570 Elite Any help is appreciated. Thank you in advance.