https://bugs.kde.org/show_bug.cgi?id=484797
Bug ID: 484797
Summary: Wayland mouse warp cursor flickers, skips
Classification: Plasma
Product: kwin
Version: 6.0.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: input
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 167973
--> https://bugs.kde.org/attachment.cgi?id=167973&action=edit
Video showing the cursor being weird
https://invent.kde.org/plasma/kwin/-/issues/85
SUMMARY
The mouse cursor flickers while in motion in Star Citizen, which was previously
affected by the camera-snapping bug which has been resolved with the recent
mouse-warp commit:
https://invent.kde.org/plasma/kwin/-/commit/630ba5fab4b02c2b496553c79d4a315da9271b53
- This doesn't affect all areas (menus appear unaffected)
- The cursor behaves "normally" when moving the cursor over the game window
when it is unfocused
- Having a few windows open in the background seems to make the issue more
pronounced
STEPS TO REPRODUCE
1. Launch a game that was previously affected by the snap-to-bottom-left issue
(i.e Star Citizen)
2. Summon the cursor (i.e. F while in first person in star citizen OR open the
inventory (I)
3. Observe where the cursor appeared
4. Summon the cursor again, observe
5. Repeat 2-4 a few times
OBSERVED RESULT
The cursor appears in different locations
EXPECTED RESULT
The cursor is consistently centered
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.0.3
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
VRR is active, the framerate is relatively high - the cursor is flickering *a
lot*.
The input is smooth in the video, but the cursor can be skipping multiple times
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