I just resumed my KDE - Wayland desktop back from sleep.
I am familiar with the usual one screen stays black while the other one works thing and sometimes no monitor comes back at all.
But this time I experienced a new sort of bug: I was able to log in, both screens were active.
However, on the primary screen, a part of the background stayed black and the was extremely flickering when I moved my mouse cursor.
I managed to capture a video with my phone - I should definitely say there is an epilepsy warning!
You can find the video here (too large for the uploads): https://youtu.be/iaTxlWAocZ8
STEPS TO REPRODUCE
1. Resume the pc from sleep
2. Log into Plasma
A part of the screen was flickering very hard.
The background should not start to flicker.
Linux/KDE Plasma: Manjaro Linux
(available in About System)
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
I don't know which logs would be relevant in this case, but if you tell me what you need, I will add it to this issue if this happens again.
*** This bug has been marked as a duplicate of bug 447705 ***