https://bugs.kde.org/show_bug.cgi?id=482351
Bug ID: 482351
Summary: Glitch/artifact on screen edge with fractional scaling
on Wayland
Classification: Plasma
Product: kwin
Version: 6.0.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: x...@outlook.com
Target Milestone: ---
SUMMARY
On Wayland, if you apply fractional scaling by a percentage that does not fully
divide the screen resolution, then there will be 1px of artifact on the
right/bottom edges of the screen.
STEPS TO REPRODUCE
E.g. I have an 2560x1600 monitor.
1. Open Display Settings.
2. Choose a fractional scaling percentage that doesn't fully divide the
resolution, i.e. 150% in my case.
3. Move windows around on the desktop.
OBSERVED RESULT
Observe that there is 1px of artifact on the bottom and right screen edge. It's
typically patterns from the wallpaper, but occasionally some windows' details
make it there as well.
EXPECTED RESULT
There is no artifact on the screen edge.
SOFTWARE/OS VERSIONS
Linux: Arch Linux
Kernel Version: 6.7.8-zen1-1-zen
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Graphics: Intel Iris Xe
Driver: kernel modesetting
ADDITIONAL INFORMATION
Screenshot for reference: https://snipboard.io/0B9kIc.jpg
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