https://bugs.kde.org/show_bug.cgi?id=477916
Bug ID: 477916
Summary: Black screen after switching VT
Classification: Plasma
Product: kwin
Version: 5.90.0
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
KWin sometimes shows a black screen (or fades into black from the desktop),
with only a mouse cursor, after switching back from another VT/user session.
The mouse cursor seems to be still reactive to what's under it, but the screen
is black. It seems that triggering DPMS to turn off and on the screen
(kscreen-doctor -d off) can rescue KWin from this situation.
It usually happens when invoking the "Switch User" action from KRunner, logging
in to another user, and then switching back. Using the Switch User button from
Kickoff may also trigger this issue, but seems to be less frequent.
According to reports in the KWin matrix room, it doesn't seem to be limited to
Wayland:
https://matrix.to/#/!xdwRmYgjAuZSEhsheE:kde.org/$WilUfLA1WHQJ5rbCuIaq0c8kHO8edGUSxqrIf6Eymf4?via=libera.chat&via=matrix.org&via=kde.org
STEPS TO REPRODUCE
1. Switch to another user session
2. Switch back
OBSERVED RESULT
The screen is black or starts to fade into black.
EXPECTED RESULT
The screen should not be black.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.90.0
KDE Frameworks Version: 5.246.0
Qt Version: 6.6.1
Graphics Platform: Wayland
--
You are receiving this mail because:
You are watching all bug changes.
