https://bugs.kde.org/show_bug.cgi?id=448969
Bug ID: 448969
Summary: [Dualmonitor] After plugging DisplayPort monitor back
in: Windows switched monitors and graphical issues
Product: kwin
Version: 5.23.90
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 145765
--> https://bugs.kde.org/attachment.cgi?id=145765&action=edit
Screenshot
SUMMARY
As you can see in the screenshot, on the left monitor there's the Firefox
window and the panel and on the right TV (HDMI) there's the Systemsettings.
Originally, the Firefox window was on the right (TV) and the Systemsettings on
the left (DP monitor):
STEPS TO REPRODUCE
1. Plasma Wayland, 200% scaling, DisplayPort monitor
2. Attach a TV to the HDMI port and expand the screen to the right
3. Open the Systemsettings and the Firefox on the DisplayPort monitor, move the
latter to the TV (maximized)
4. Disconnect the DisplayPort cable
OBSERVED RESULT
The panel moved to the TV, everything looked fine.
STEPS TO REPRODUCE
5. Connect the DisplayPort again
OBSERVED RESULT
The panel moved back to the DisplayPort monitor, as expected.
However, the Firefox window moved from the TV to the Display monitor as well
and Systemsettings window moved in the other direction from the DisplayPort
monitor to the TV.
Also the background wallpaper on the TV vanished and there are graphical
artifacts (black bars) on the Systemsettings window.
EXPECTED RESULT
Systemsettings on the DisplayPort monitor, Firefox on the TV, no-gone wallpaper
and no graphical glitches.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon Testing
KDE Plasma Version: 5.23.90
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
ADDITIONAL INFORMATION
Wayland
DisplayPort Monitor: 3840x2160@200%
TV: 1920x1080@100%
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