https://bugs.kde.org/show_bug.cgi?id=506615
Bug ID: 506615
Summary: Cursor drops frames, UI is janky on Wayland
Classification: Plasma
Product: kwin
Version First 6.4.2
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: randomjerk2...@gmail.com
Target Milestone: ---
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SUMMARY
The KDE Wayland UI (since atleast 6.3.x and ongoing) is really janky, with the
mouse cursor dropping frames all over. This happens on AMD 6800XT and 9070
GPUs. Does not happen on Intel or Nvidia GPUs.
STEPS TO REPRODUCE
1. Login into Plasma session and start using it. The mouse cursor starts
dropping frames every few seconds, no matter what app is running or not.
OBSERVED RESULT
Cursor drops frames, UI is janky on Wayland
EXPECTED RESULT
UI is expected to be smooth, no cursor frame drops.
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Linux KDE Plasma
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
ADDITIONAL INFORMATION
Tried both parameters KWIN_DRM_DELAY_VRR_CURSOR_UPDATES=1 and
KWIN_FORCE_SW_CURSOR=1, and it did not solve the issue.
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