https://bugs.kde.org/show_bug.cgi?id=429266
Bug ID: 429266
Summary: Unplugging and replugging screen leads to
configuration issues
Product: KScreen
Version: 5.20.3
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I have a laptop connected to a USB-C docking station, which is then connected
to an external monitor using a DisplayPort cable. If I plug in the docking
station at login time, the screen is enumerated as "DisplayPort-4", but if I
unplug and then re-plug the dock the screen becomes "DisplayPort-5" and loses
all the associated configuration (e.g. panels, docks, wallpaper, etc). To be
more correct, it does not use the configuration, as it is seen as a different
screen; the configuration is not actually lost. Moreover, when I re-plug the
USB-C cable I have to manually activate the screen, otherwise it is disabled.
If I plug in the dock after the login, then everything works as expected and
unplugging and re-plugging the dock has no effect whatsoever on the screen as
it should be.
STEPS TO REPRODUCE
1. plug in a display at login
2. unplug it after the login
3. re-plug it
OBSERVED RESULT
The screen is disabled and needs manual enabling in the settings; moreover, it
"loses" the configuration with elements such as panels, docks and wallpapers
not being shown.
EXPECTED RESULT
Re-plugging the screen leads to it working as it did before unplugging it.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon Focal
KDE Plasma Version: 5.20.3
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1
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