https://bugs.kde.org/show_bug.cgi?id=428729
Bug ID: 428729
Summary: KWin Compositor stutters after resuming it after long
WINE/native gaming session.
Product: kwin
Version: 5.20.2
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: samping...@gmail.com
Target Milestone: ---
SUMMARY
KWin Compositor starts stuttering after resuming it, after long WINE/native
gaming sessions (like for 30 minutes or more)
STEPS TO REPRODUCE
1. Open and Play any WINE/Native game (which triggers auto-blocking of
compositing) for more than 20-30 minutes.
2. Close the game, the compositor resumes compositing.
3. Drag the cursor while pressing and holding the left mouse button on
'Desktop' to test the smoothness of highlighting box while dragging the mouse.
4. Open Firefox and scroll in any webpage (Turn on WebRender/OpenGL, Enable
Smooth-scrolling and Auto-scrolling).
5. Disable Compositor (Alt+Shift+F12), Firefox scrolling and Highlight box
becomes smooth again.
6. Use `killall` plasmashell & kwin_x11, then `kstart5` plasmashell & kwin_x11
to make the compositor smooth again (Not fully as smooth as before starting the
game, but significantly less stutter than before).
OBSERVED RESULT
The KWin compositor becomes stuttery after resuming the compositing after
playing any game which blocks compositing for more than 20-30 minutes. This is
not visually visible when dragging windows but when dragging the highlight box
in desktop or when scrolling in any application like Discord, Firefox (as
stated above) or even the mouse cursor visibly stutters sometimes. Disabling
compositing by using the shortcut makes the desktop smooth again. Also killing
and restarting kwin_x11 "almost" restores it to the initial non-stuttery state.
But only logging out and logging in or restarting the machine stops this
stuttering.
EXPECTED RESULT
The KWin Compositor should resume after gaming without any stutters in
desktop.
SOFTWARE/OS VERSIONS
Linux: linux-5.9.3-95-tkg-pds (Kernel doesn't make any difference)
KDE Plasma Version: 5.20.2
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1
ADDITIONAL INFORMATION
Graphics Card: GeForce GTX 1060 6GB
NVidia Proprietary Driver Version: 455.38-1 (from chaotic-AUR. Same problem
with official nvidia-dkms for Linux-Zen Kernel and nvidia package in Arch
official kernel)
--
You are receiving this mail because:
You are watching all bug changes.
