https://bugs.kde.org/show_bug.cgi?id=463879
Bug ID: 463879
Summary: Virtual desktops Pager applet makes windows resize
stutter/jerky
Classification: Plasma
Product: plasmashell
Version: master
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Pager
Assignee: plasma-b...@kde.org
Reporter: bmil...@gmail.com
CC: h...@kde.org
Target Milestone: 1.0
SUMMARY
***
When the virtual desktops Pager applet is enabled, resizing windows lags really
hard. It also seems to increase random stutters, which exists anyway with
Nvidia+KDE. Pretty sure it didn't happen with my last GPU (RX580 on AMDGPU).
It is likely related to OpenGL+Nvidia since it also doesn't happen if I set
QtQuick rendering to "Software" in kcmshell5 qtquicksettings
***
STEPS TO REPRODUCE
1. Have at least two virtual desktops.
2. Add Pager widget to your panel.
3. Resize any window
OBSERVED RESULT
The entire desktop stutters really hard while you resize windows.
EXPECTED RESULT
The usual Nvidia resize stutters anyway but it is a lot better without pager
enabled.
SOFTWARE/OS VERSIONS
Linux @ Arch Linux on Kernel 6.1.2
KDE Plasma Version: 5.26.5
KDE Frameworks Version: dunno
Qt Version: 5.15.7
ADDITIONAL INFORMATION
GPU: RTX 3090 on latest NVIDIA proprietary driver (525.60.11)
Workaround: Set Software rendering in 'kcmshell5 qtquicksettings'
qdbus org.kde.KWin /KWin supportInformation ->
https://invent.kde.org/-/snippets/2461
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