https://bugs.kde.org/show_bug.cgi?id=484431
Bug ID: 484431
Summary: Black desktop space on unlock, until `plasmashell
--replace`
Classification: Plasma
Product: plasmashell
Version: 6.0.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Desktop Containment
Assignee: plasma-b...@kde.org
Reporter: maelstrom256+bugs.kde....@gmail.com
CC: notm...@gmail.com
Target Milestone: 1.0
SUMMARY
***
Hello there.
I'm using system on the laptop with two displays, wayland session. Main laptop
display disabled in desktop configuration and only external display active.
Sometimes after I have system locked, I can unlock it usual way, but desktop
space is black and panel not working (windows and task switching are ok), and
`plasmashell --replace` needed to continue using system.
Problem never appears with only internal display
***
Journalctl output:
```
❯ journalctl -g plasma --since "2024-03-25" --no-pager
Mar 25 01:34:00 warmsands kscreenlocker_greet[575238]:
file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/lockscreen/MediaControls.qml:31:13:
QML QQuickImage: Blocked request.
Mar 25 06:46:22 warmsands kcminit[614565]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
Mar 25 06:46:22 warmsands kcminit[614542]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
Mar 25 06:46:22 warmsands kcminit[614565]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_style.so"
Mar 25 06:46:22 warmsands kcminit[614542]: Initializing
"/usr/lib/qt6/plugins/plasma/kcms/systemsettings/kcm_style.so"
Mar 25 06:46:35 warmsands kscreenlocker_greet[575238]:
file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/lockscreen/MediaControls.qml:31:13:
QML QQuickImage: Blocked request.
Mar 25 06:46:41 warmsands kscreenlocker_greet[575238]:
file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/lockscreen/NoPasswordUnlock.qml:26:
ReferenceError: tryToSwitchUser is not defined
Mar 25 06:46:51 warmsands plasmashell[482158]: kde.plasmashell: requesting
unexisting screen available rect -1
Mar 25 06:46:52 warmsands plasmashell[482158]: kde.plasmashell: requesting
unexisting screen available rect -1
Mar 25 06:48:31 warmsands kscreenlocker_greet[614982]:
file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/lockscreen/MediaControls.qml:31:13:
QML QQuickImage: Blocked request.
```
01:34 I have locked system and 06:46 unlocked it.
06:48 I had second lock/unlock cycle and there no any messages from
plasmashell, so I suppose it's dead or hanged.
STEPS TO REPRODUCE
1. Configure system to use external display only
2. Lock screen
3. Unlock screen after about a hour
OBSERVED RESULT
Desktop space black and no panel active
EXPECTED RESULT
Desktop space black and panel are functioning normally
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.0.2
KDE Plasma Version: 6.0.2-4
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
My system has been recently upgraded from plasma5 to plasma6. Another system
with no external displays works well.
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