https://bugs.kde.org/show_bug.cgi?id=527847
Bug ID: 527847
Summary: Lags on fullscreened apps
Classification: Plasma
Product: kwin
Version First 6.8.1
Reported In:
Platform: CachyOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
When my game is on fullscreen/borderless fullscreen, there would be lag and
stutter, but not when it's on windowed mode or when the game is not focused,
such as when I hold alt-tab or open up the start menu.
I just updated my system today to plasma 6.8.1 when I encounter this issue.
Last night when my system was still on 6.8.0 it was fine and this problem never
happened before. I don't know if it's kwin related, but I saw a post of someone
downgrading to kwin 6.8.0-1 and it was fixed.
STEPS TO REPRODUCE
1. Play steam games in full screen, preferably third person games where you can
rotate camera
2. With controller, slowly rotate camera to right and hold it so it always
rotates
3. Observe how it looks, then open up start menu/application launcher so the
game is not in focus while still rotating the camera
OBSERVED RESULT
There would be stutter with the game
EXPECTED RESULT
There shouldn't be stutter like in previous version
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window):
KDE Plasma Version: 6.8.1
KDE Frameworks Version: 6.31.0
Qt Version: 6.12.0
ADDITIONAL INFORMATION
I use AMD GPU. Because my stutter is not as apparent and hard to capture on
video, the attachment is a video from a different person with the same problem.
The person also uses CachyOS, have AMD GPU, and just updated their system too.
Same as them, if I go windowed mode my game would run smooth but would have
slight stutter when going fullscreen.
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