https://bugs.kde.org/show_bug.cgi?id=499848
Bug ID: 499848
Summary: Commit 9f8b9afa makes mouse movement break VRR
scenarios
Classification: Plasma
Product: kwin
Version: 6.3.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: t...@nitrosubs.live
Target Milestone: ---
SUMMARY
After 9f8b9afa (core/outputlayer: when repaints are added, schedule the frame
for them), cursor updates cause vsynced repaints for fullscreen apps even with
VRR enabled.
STEPS TO REPRODUCE
1. Use automatic VRR
2. Launch VRRTest in fullscreen mode and set FPS to an arbitrary value
3. Move the mouse
OBSERVED RESULT
The output stutters; cursor movement is always tied to the screen's refresh
rate
EXPECTED RESULT
The output should not be affected by mouse movements, everything should remain
smooth
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.3.0
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.13.2-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: AMD Radeon RX 6600 XT
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