https://bugs.kde.org/show_bug.cgi?id=436735
Bug ID: 436735
Summary: Plasmashell doesn't reload properly on external
monitor after power outage
Product: plasmashell
Version: master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Multi-screen support
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
SUMMARY
Whenever there's a brief power outage or the power cable of an external monitor
is suddenly disconnected and later reconnected, Plasmashell does not restore
the contents of that monitor; it acts as though it's a new desktop or something
that uses default settings.
I have a laptop monitor on the left and an external monitor on the right.
On the external monitor, I have a custom wallpaper, a panel with pinned apps,
and the layout is set as Desktop instead of Folder view.
After a blackout or power cable disconnect and reconnect, the external monitor
shows the default wallpaper (Milky Way), no panel, and a Folder view layout.
This only happens on the Wayland session, not the X11 one.
STEPS TO REPRODUCE
1. Customize your external monitor somewhat
2. Remove the power cable from the socket
3. Reconnect the power cable to the socket
OBSERVED RESULT
No retention/memory/reload of the previously set desktop.
EXPECTED RESULT
The desktop is reloaded just fine.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20210427 (up-to-date Krypton despite the
date)
KDE Plasma Version: 5.21.80
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
Kernel Version: 5.12.0-1-default (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-7200U CPU @ 2.50GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 620
ADDITIONAL INFORMATION
Restarting Plasmashell fixes the issue.
I am not using systemd startup.
I've been experiencing this issue for a while now.
The following shows up when running journalctl -f /usr/bin/plasmashell
After disconnect:
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19:
QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:97:
TypeError: Cannot read property 'enabledBorders' of null
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:78:
TypeError: Cannot read property 'screenGeometry' of null
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:161:
TypeError: Cannot read property 'opacityMode' of null
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:121:
TypeError: Cannot read property 'x' of null
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:135:
TypeError: Cannot read property 'y' of null
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:26:1:
QML Panel: Binding loop detected for property "state"
trying to show an empty dialog
After reconnect:
requesting unexisting screen 1
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