https://bugs.kde.org/show_bug.cgi?id=424011
Bug ID: 424011
Summary: Visual desktop corruption after display is turned back
on
Product: plasmashell
Version: 5.18.5
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: k...@ormans.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 129986
--> https://bugs.kde.org/attachment.cgi?id=129986&action=edit
journalctl output
SUMMARY
I have an interesting (read maddening and not obviously fixable) problem with a
single machine that I want to run KDE on. The computer is hooked up to an
audio video receiver (AVR) which is hooked up to a TV. Once the AVR and TV are
shutoff for several minutes, turning them back on results in a visually
corrupted desktop with horizontal line artifacts everywhere (icons, panels,
applications, kickoff, etc.).
The only thing that fixes the desktop is logging out and back in (or obviously
restarting). kwin_x11 --replace or kquitapp5 plasmashell && kstart5plasmashell
don't get rid of the corruption.
It's an Intel based machine with discrete AMD graphics. While I'm submitting
this issue based on a clean install of OpenSUSE Leap 15.2/Plasma 5.18.5, the
same behavior exists on this machine using Tumbleweed, Kubuntu, and Neon.
I fully suspect that the root cause is some weird power/link management issue
in the AVR or TV, but I'm hoping there is some workaround I haven't tried, or
that if it is a bug it can be fixed. GNOME works fine on this machine (either
vanilla or with dash-to-dock), but I *strongly* prefer Plasma and I need any
computers hooked up to TVs to have consistent DEs so my family can use them
easily without me.
STEPS TO REPRODUCE
1. This computer running and logged into a KDE Plasma session
2. Turn off TV (Sharp Aquos LC80LE642) and AVR (Onkyo TX-NR809) for ~10+
minutes
3. Turn TV and AVR back on
OBSERVED RESULT
Plasma desktop is visually corrupted.
EXPECTED RESULT
Plasma desktop is not visually corrupted.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: OpenSUSE Leap 15.2
(available in About System)
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.71.0
Qt Version: 5.12.7
ADDITIONAL INFORMATION
Also occurs in the latest 5.19.x releases on Tumbleweed or Neon. Attaching
inxi system info, journalctl output, and some pictures of the visual
corruption. The system was booted at 14:15 in the journalctl output, the
TV/AVR were shut off, and then I turned the TV/AVR back on and logged back in
30 minutes later 14:45.
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