https://bugs.kde.org/show_bug.cgi?id=505607
Bug ID: 505607
Summary: Screen content mangled around after sleep [radeon]
Classification: Plasma
Product: kwin
Version First 6.3.5
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: im.tech....@gmail.com
Target Milestone: ---
SUMMARY
Sometimes (not clear when exactly), after waking the device up after RAM sleep
and/or disk hibernation, the whole screen except for the mouse cursor appears
mangled around in a sort of blocky horizontal stripy pattern.
This behavior has been observed on Wayland a desktop and a laptop running AMD
Radeon HD 7560D and AMD Radeon R6/R7 respectively, with the former being on
Arch and the latter on Fedora (and previously Kubuntu).
A workaround I found was to switch to another TTY and back again, seems to
reset something.
STEPS TO REPRODUCE
1. Go into sleep mode
2. Wait some time (just in case, not sure about this step)
3. Wake up device
OBSERVED RESULT
There is a big chance the lock screen and subsequently the desktop all render
distorted, with the mouse cursor rendering fine on top.
EXPECTED RESULT
Screen renders correctly
SOFTWARE/OS VERSIONS
Linux: Arch, Kubuntu 25.04, Fedora 42
KDE Plasma Version: 6.3.x
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0
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