https://bugs.kde.org/show_bug.cgi?id=487598
Bug ID: 487598
Summary: Firefox window on X11 - flickers, shows graphics from
previously closed window
Classification: Plasma
Product: kwin
Version: 6.0.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: danins...@gmail.com
Target Milestone: ---
SUMMARY
When using Firefox, I occasionally see a flickering effect on all or part of
the window. It typically happens while I move or interact with something else
on my second monitor. I can't reproduce this on command, but it happens often
enough that I was able to get some videos of it, which I will try to attach.
Recently, the flickering area contains a white "404" page. This is from a
firefox window that I closed hours or days ago, not one that is currently open.
STEPS TO REPRODUCE
1. Open firefox on right monitor
2. Maximize another program on left monitor
3. Restore and drag program around on left monitor
1. Open firefox on right monitor
2. Hover over the firefox taskbar icon on left monitor, showing previews of all
open windows
3. Hover over different preview windows
OBSERVED RESULT
- Flickering areas
- Graphics are displayed that are from a previously closed firefox window
EXPECTED RESULT
Normal behavior when viewing and moving windows.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
Kernel Version: 6.9.1-arch1-1
ADDITIONAL INFORMATION
Graphics Platform: X11
Graphics Processor: AMD Radeon RX 6700 XT
Right monitor: Gigabyte M27Q 2560x1440
Left monitor: Asus VG248QE 1920x1080
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