https://bugs.kde.org/show_bug.cgi?id=443247
Bug ID: 443247
Summary: Visual glitch in the animation for the Desktop Grid
effect
Product: kwin
Version: 5.22.90
Platform: Archlinux Packages
OS: Other
Status: REPORTED
Severity: minor
Priority: NOR
Component: effects-window-management
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 142113
--> https://bugs.kde.org/attachment.cgi?id=142113&action=edit
Screen recording of the animation for the Desktop Grid effect.
SUMMARY
When the Desktop Grid effect is triggered from a keyboard shortcut or a screen
edge, a part of the wallpaper on each desktop is replaced by a black region
during the animation, which is disorienting. Everything is fine once the
animation ends.
STEPS TO REPRODUCE
1. Have more than one virtual desktop
2. Trigger desktop grid effect using a keyboard shortcut
OBSERVED RESULT
During the animation, part of each desktop's wallpaper is replaced by a black
region. I have attached a screen recording (after setting the animation speed
(System Settings > Workspace Behaviour > General Behaviour) to the slowest
possible value) which displays this behaviour. The desktops are displayed
correctly when the animation ends.
EXPECTED RESULT
No graphical glitches during animation.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.22.90
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2
Kernel Version: 5.10.70-1-lts (64-bit)
Graphics Platform: X11
Processors: 4 × AMD EPYC-Rome Processor
Memory: 1.4 GiB of RAM
Graphics Processor: virgl (this is a VM, but the bug is also reproducible on
bare metal with AMD graphics)
ADDITIONAL INFORMATION
The same glitch happens in reverse when exiting the Desktop Grid effect
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