https://bugs.kde.org/show_bug.cgi?id=506982
Bug ID: 506982
Summary: Laptop screen stays off after undocking from docking
station
Classification: Plasma
Product: plasmashell
Version First 6.4.2
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: grave
Priority: NOR
Component: generic-crash
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 183196
--> https://bugs.kde.org/attachment.cgi?id=183196&action=edit
journalctl
SUMMARY
After disconnecting from a docking station while using external monitors (with
the laptop screen turned off), the laptop screen does not turn on.
Additionally, when undocking, the external monitors also do not remain active.
The system appears to fail to properly switch outputs, resulting in a black
screen.
STEPS TO REPRODUCE
* Connect laptop to docking station with external monitors.
* Use the system exclusively on external monitors (with internal laptop screen
off).
* Disconnect the laptop from the docking station.
OBSERVED RESULT
* Neither the laptop screen nor the external monitors turn on after undocking.
* System seems to lose track of available display outputs.
* Logs indicate Wayland and DRM-related failures.
EXPECTED RESULT
* The laptop display should turn on automatically after undocking.
* Alternatively, at least one usable screen should remain available for user
interaction.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
ADDITIONAL INFORMATION
Excerpts from system logs during the failure
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