https://bugs.kde.org/show_bug.cgi?id=498176
Bug ID: 498176
Summary: Missing dekstop/panel on 2nd screen when switching
monitor inputs or wake from monitor sleep.
Classification: Plasma
Product: plasmashell
Version: 6.2.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Panel
Assignee: plasma-b...@kde.org
Reporter: kali...@andontie.net
CC: niccolo.venera...@gmail.com
Target Milestone: 1.0
Created attachment 177051
--> https://bugs.kde.org/attachment.cgi?id=177051&action=edit
journalctl from after I switch back to HDMI
SUMMARY
I switch inputs on my second monitor when I want to use my GPU passthrough VM,
which uses displayport while my Linux uses HDMI. Since Plasma 6.2.4, switching
back to the HDMI gives me a black screen. I can still move my mouse on it, drag
windows over to it, and alt+tab, but the plasma desktop is completely gone from
the monitor. I can't right click, either. The only way to bring it back is to
go into the settings and switch primary monitor to secondary and then back.
Running 'plasmashell --replace' also fixes it.
This issue can also occur when waking the monitor from sleep. Usually it'll
happen after it's been asleep for a while, but switching inputs is a guaranteed
way to reproduce.
I'm using Xorg. I've attached the journalctl that happens after I switch the
input back to HDMl, Please let me know if other logs are needed.
Thanks!
STEPS TO REPRODUCE
1. Switch monitor input from Linux screen to something else.
2. Switch it back to Linux screen.
OBSERVED RESULT
Desktop background and panels are gone, screen is black. Mouse and windows
still work on it, as does alt-tab.
EXPECTED RESULT
The screen looks the same as it did before the input switch when changing back.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.9.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
The multiple 'kde.plasmashell: requesting unexisting screen available rect -1'
lines in the journalctl jump out at me as maybe being something related to the
bug.
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