https://bugs.kde.org/show_bug.cgi?id=495861
Bug ID: 495861
Summary: When adding a second screen with greater resolution
than first screen, screen goes black with exception of
cursor
Classification: Plasma
Product: plasmashell
Version: 6.2.2
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: briguy...@live.com
CC: k...@davidedmundson.co.uk
Target Milestone: 1.0
Created attachment 175567
--> https://bugs.kde.org/attachment.cgi?id=175567&action=edit
syslog from boot which switched to only render black screen after I enabled
second screen
SUMMARY
When adding a second screen with a greater resolution than the currently
connected screen while a session is active, screen goes all black during the
display transition, and then only a cursor renders. Neither screen is showing
any content anymore, and the only way to resolve is to restart the PC and have
both screens active at time of login.
STEPS TO REPRODUCE
1. Have two screens, one 1080p and second 1440p
2. Have the 1440p turned off and 1080p turned on
3. Boot the PC and advance to the desktop
4. While at the desktop, turn on the 1440p screen
5. Wait for screen to flicker when second screen is turned on
6. Move mouse around to observe cursor
OBSERVED RESULT
Screen flickers and stays all black, and only the cursor is rendered.
EXPECTED RESULT
Screen flickers and re-adjusts for dual-monitor setup and 1440p is primary, and
1080p is secondary.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.11.6-arch1-1 (64-bit)
KDE Plasma Version: 6.2.2
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0
ADDITIONAL INFORMATION
If relevant, the 1440p is my actual primary screen.
Issue began in 6.2.0 stable (a blocking issue prevented me from testing 6.2
betas unfortunately). 6.1.x stable series worked fine however.
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