https://bugs.kde.org/show_bug.cgi?id=477323
Bug ID: 477323
Summary: Samsung Odyssey G5 (LC27G5xT) display does not
initialize properly after logging in
Classification: Plasma
Product: KScreen
Version: 5.27.9
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: vel...@protonmail.com
Target Milestone: ---
SUMMARY
When booting my system with NVIDIA's DRM enabled, my Samsung Odyssey display
only shows a black screen after logging in.
Having the screen off while I boot and log in, and then turning the display on
causes no significant issues and allows for the display to work like normal.
STEPS TO REPRODUCE
1. Boot your system with a Samsung Odyssey G5 display connected
2. Log in to KDE
3. Observe that the display does not show a visual output
OBSERVED RESULT
The display is still recognized by Plasma as a display, and windows can still
be moved to and from the display.
Disabling or turning the display off freezes Plasma. I have experienced that
the system unfreezes itself after a while, and that enabling or turning the
display back on similarly freezes Plasma.
EXPECTED RESULT
The display having a visual output without needing to have the display off
during boot and login.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.6.2-zen1-1-zen
(available in About System)
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.112.0
Qt Version: 5.15.11
ADDITIONAL INFORMATION
I'm using SDDM in Wayland mode with kwin_wayland. I'm also using the Wayland
version of Plasma, I haven't checked if the issue persists when using X11.
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