https://bugs.kde.org/show_bug.cgi?id=447705
Bug ID: 447705
Summary: Flickering in Wayland session when returning from
standby
Product: kwin
Version: 5.23.4
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: jan.rathm...@gmx.de
Target Milestone: ---
Most of the time, when returning my PC from standby/suspend-to-RAM, there is a
heavy flickering on the whole screen (video attached). It immediately goes away
when I click inside a window or move the cursor over a panel.
Only Wayland session is affected, I never saw this under X11 (I noticed this
when I switched to Wayland by default since ~2 months).
I noticed the following pattern:
- When the system has been powered off completely, there is sometimes no
flickering on the first or even on the second time the system is resumed
- If there was one resume with flickering, there will be flickering too on all
the following resumes (as long as I don't restart/power off the system
completely).
I have attached the output of lshw for my system, in case it helps.
Linux/KDE Plasma: Kubuntu 21.10 with Backports-PPA
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89
Qt Version: 5.15.2
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