https://bugs.kde.org/show_bug.cgi?id=487057
Bug ID: 487057
Summary: After running an SDL application kwin_wayland uses
100% CPU even after the app is closed
Classification: Plasma
Product: kwin
Version: 6.0.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: core
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 169504
--> https://bugs.kde.org/attachment.cgi?id=169504&action=edit
KWin support information.
SUMMARY
kwin_wayland uses 100% CPU after running a program that uses SDL.
I have to restart to get KWin to return to low CPU useage.
STEPS TO REPRODUCE
1. Run Kwin under wayland
2. Run an SDL based application. e.g steam game or SDL version of Medley.
3. Observe CPU load
OBSERVED RESULT
KWin uses 100% CPU even after the application exits
EXPECTED RESULT
KWin should use very little CPU.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: EndeavourOS
(available in About System)
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
ADDITIONAL INFORMATION
Attached is the output of "qdbus org.kde.KWin /KWin supportInformation"
This is on an Optimus laptop with integrated Intel GPU and discrete NVidia
1060m GPU
I *suspect* it's something to do with the GPU switching.
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