https://bugs.kde.org/show_bug.cgi?id=414415
Bug ID: 414415
Summary: Screen black w/ mouse pointer after unplugging
closed-lid laptop from external monitor(s)
Product: KScreen
Version: 5.17.3
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: p...@extreg.com
Target Milestone: ---
Please note: I'm not sure whether this bug is filed under the correct product.
SUMMARY
Disconnecting an external monitor from a *closed-lid* laptop and _trying_ to
continue work on the laptop causes the laptop screen to be black with the mouse
pointer. CTRL+ALT+F{2...9} + CTRL+ALT+F1 doesn't help. Only way to get the
laptop display working is to either re-connect the external monitor or reboot
the laptop.
There is NO problem if the laptop lid is open when the disconnection happens
which makes me think whether this could have something to do with sleep – when
the external monitor is disconnected the laptop goes to sleep, of course, since
the lid is closed. Or maybe it's not sleep but it's the lockscreen which is a
result of waking from sleep. No idea.
STEPS TO REPRODUCE
1. Use an external monitor, laptop lid closed
2. Disconnect the external monitor
3. Try to continue working on the laptop
OBSERVED RESULT
Screen is totally black with mouse pointer which can be moved
EXPECTED RESULT
Screen is normal and shows all the usual stuff
SOFTWARE/OS VERSIONS
Thinkpad T480s
Operating System: Kubuntu 19.10
KDE Plasma Version: 5.17.3
KDE Frameworks Version: 5.64.0
Qt Version: 5.12.4
Kernel Version: 5.3.12-050312-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8650U CPU @ 1.90GHz
Memory: 23,0 GiB of RAM
ADDITIONAL INFORMATION
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