https://bugs.kde.org/show_bug.cgi?id=450174
Bug ID: 450174
Summary: Plasma 5.24 Wayland: multi-screen issue
Product: plasmashell
Version: 5.24.0
Platform: unspecified
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Multi-screen support
Assignee: plasma-b...@kde.org
Reporter: marcomisser...@gmail.com
CC: aleix...@kde.org, notm...@gmail.com
Target Milestone: 1.0
SUMMARY
***
Plasma 5.24 on Wayland: when I connect an external monitor to my Optimus laptop
(Intel iGPU + NVIDIA dGPU, without the NVIDIA driver), the only working mode is
"unify outputs". If I choose "switch to laptop screen" the external monitor
stays powered on, and if I choose "switch to external screen" sometimes it does
nothing with both screens remaining powered on with the cursor only working in
the laptop screen, and sometimes it does nothing with both screens remaining
powered on with the cursor only working in the external screen.
This is without the NVIDIA driver. With the NVIDIA driver instead (Wayland) if
I connect my laptop to an external monitor all I get is a black screen on my
laptop, and I have to force reboot. Starting with Plasma 5.23.2 it used to work
almost flawlessly.
***
STEPS TO REPRODUCE
1. Connect an Optimus laptop to an external monitor via HDMI
2. Try to switch to the external screen or to unify the outputs
3.
OBSERVED RESULT
The laptop screen doesn't turn off when "Switch to the external screen" is
selected, and the external screen doesn't turn off when "Switch to the laptop
screen" is selected.
EXPECTED RESULT
The laptop screen should turn off when "Switch to the external screen" is
selected, and the external screen should turn off when "Switch to the laptop
screen" is selected.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: any Linux distribution
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
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