https://bugs.kde.org/show_bug.cgi?id=417455
Bug ID: 417455
Summary: Black screen after SDDM login and start screen in
10bit/30bpp mode with compositor enabled in OpenGL
mode (amdgpu)
Product: plasmashell
Version: 5.17.5
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
SUMMARY
Black screen with compositor turned on in OpenGL mode. No black screen with
compositor in XRender or compositor turned off.
No black screen in Gnome/xorg or starting plasmashell via terminal in Gnome
desktop environment (with compositor turned on in OpenGL mode)
STEPS TO REPRODUCE
1. Enable xorg running in 10bit/30bpp via DefaultDepth in 20-amdgpu.conf
2. Turn compositor on in OpenGL mode
3. Logout/restart & login via SDDM
OBSERVED RESULT
black screen with mouse cursor after SDDM login and start screen.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.66.0
Qt Version: 5.14.1
ADDITIONAL INFORMATION
Amd Radeon Vega64
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