https://bugs.kde.org/show_bug.cgi?id=468912
Bug ID: 468912
Summary: Visual bug in the new Spectacle preview with multiple
monitors and monitor scaling in Wayland
Classification: Applications
Product: Spectacle
Version: 23.04.0
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: noaha...@gmail.com
Reporter: apri...@posteo.net
CC: k...@david-redondo.de
Target Milestone: ---
Created attachment 158386
--> https://bugs.kde.org/attachment.cgi?id=158386&action=edit
Visual artifacts with 150% scaling on the left monitor
After the new UI update for Spectacle a new visual bug appeared in the preview,
as can be seen in the attached screenshots.
STEPS TO REPRODUCE
1. Open KDE Plasma in Wayland mode
2. Attach at least two monitors to your GPU. In the display settings set
scaling of the left monitor to 150% and of the right monitor to 200%. This can
depend on the resolutions. I think the right monitor must be "bigger" in the
display settings preview to see this effect.
3. Open Spectacle and take a new screenshot with "rectangular region"
OBSERVED RESULT
The preview to select the rectangle shows a visual artifact. The right part of
the right monitor gets duplicated to the left side of the right monitor,
obstructing the view to the content behind. The area that gets duplicated
depends on the scaling factor of the left monitor. The bigger the scaling
factor of the left monitor the more gets duplicated on the right monitor.
EXPECTED RESULT
There are no visual artifacts. The preview shows the correct content.
SOFTWARE/OS VERSIONS
Linux: 6.2.12-arch1-1 (64-bit)
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
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