https://bugs.kde.org/show_bug.cgi?id=433107
Bug ID: 433107
Summary: Wayland: iGPU multi-monitor keeps displaying the SDDM
screen
Product: KScreen
Version: 5.21.0
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: andrewammerl...@riseup.net
Target Milestone: ---
Created attachment 135787
--> https://bugs.kde.org/attachment.cgi?id=135787&action=edit
wayland session log
SUMMARY
After upgrading to 5.21.0 monitors connected to the iGPU are detected (yay)
(bug 417323), but all they display is the SDDM screen which stayed there after
login. The cursor is visible, I can move windows onto those monitors, but the
SDDM screen still gets displayed over them so they are not visible.
Rearranging the monitors works, but still the SDDM screen is displayed on top
of everything else (including the taskbar etc). Trying to change the resolution
makes *everything* crash (kwin, plasmashell, xwayland, etc.) without
re-spawning.
STEPS TO REPRODUCE
1. Start wayland session with monitor connected to one of the iGPU's ports
OBSERVED RESULT
The SDDM screen stays visible on the monitors connected to the iGPU, monitors
connected to the AMDGPU work fine. I cannot interact with this screen, nor can
I see anything that is put below it.
EXPECTED RESULT
The monitors connected to the iGPU work the same as those connected to the
AMDGPU. The SDDM screen is replaced by the splash screen and eventually the
desktop.
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux
KDE Plasma Version: 5.21.0
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-gentoo
OS Type: 64-bit
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-8700K CPU @ 3.70GHz
Memory: 31.2 GiB of RAM
Graphics Processor: Radeon RX 590 Series
ADDITIONAL INFORMATION
~/.local/share/sddm/wayland-session.log attached as requested.
How do I obtain the backtrace of kwin_wayland?
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