https://bugs.kde.org/show_bug.cgi?id=451914
Bug ID: 451914
Summary: [Wayland] Graphical glitches upon unlock with Multiple
Monitors
Product: kscreenlocker
Version: 5.24.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: greeter
Assignee: plasma-b...@kde.org
Reporter: mattyhoffm...@gmail.com
CC: bhus...@gmail.com
Target Milestone: ---
Created attachment 147733
--> https://bugs.kde.org/attachment.cgi?id=147733&action=edit
Demonstration of 3 glitches occuring (artifacting, flickering/black screen,
black screen flash)
SUMMARY
Occasionally I will experience graphical glitches upon unlocking my computer
during the Wayland session if I have multiple monitors connected. I notice it
the most after my computer has resumed from sleep, but have had it happen
before that as well. Have noticed on both Tumbleweed and Arch using AMDGPU
drivers.
The attached video shows 3 examples of the glitches I've experienced, they go
away when I move the mouse over the space where the glitches are occurring.
STEPS TO REPRODUCE
1. Connect at least 2 monitors
2. Start a Wayland plasma session
3. Put the machine in suspend mode, then wake it up (might not be required, but
I notice it most after suspend)
4. Unlock the Plasma Wayland session
OBSERVED RESULT
Occasionally there are graphical glitches (flickering, artifacting, etc.) on
one or both of the screens
EXPECTED RESULT
Smooth unlocking process with no glitches
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.16.16-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-4770K CPU @ 3.50GHz
Memory: 19.5 GiB of RAM
Graphics Processor: AMD Radeon RX 6900 XT
ADDITIONAL INFORMATION
Running Wayland with both screens at 1920x1080, 144Hz over DisplayPort. I have
NOT observed this on X11 at all.
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