https://bugs.kde.org/show_bug.cgi?id=493242
Bug ID: 493242
Summary: Window remains on disconnected monitor after waking up
from sleep
Classification: Plasma
Product: kwin
Version: 6.1.2
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: fe...@feldspaten.org
Target Milestone: ---
SUMMARY
If disconnecting a device from an external monitor while the device sleeps, the
window remains on that screen, even if the screen is not present anymore.
My laptop is connected to a docking station, which has two external monitors
connected. If I open an application, e.g. Firefox on the external monitor, and
then put the laptop to sleep, then disconnect it from the dock, then those
windows remain on the virtual screen, but one cannot access them anymore.
Plasma restricts itself to the laptop screen only, but the windows remain on
the now disconnected screen, and cannot be moved nor restored. I tried to
minimize the Firefox window and maximize it again to show up on the laptop
screen but no success. One can see the maximize restore to move to where the
external monitor was connected, but the window remains out of reach.
I can only reproduce it when putting the laptop to sleep.
STEPS TO REPRODUCE
1. Connect an external monitor, move Firefox on that display
2. Put computer to sleep
3. Disconnect the external monitor (or docking station)
4. Wake computer up
5. Firefox remains on the external monitor screen, no way to access it anymore
OBSERVED RESULT
After waking up from sleep, a window previously on an external monitor is not
accessible anymore
EXPECTED RESULT
After waking up from sleeping, all windows will be moved to the remaining
screens, if they are out of the available displays.
It would be also a good idea to do the same check when maximising a window, so
that minimizing and maximizing could become a last-resort option.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: openSUSE Tumbleweed 20240915
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.2
ADDITIONAL INFORMATION
In my setup the external monitors are connected through a docking station.
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