https://bugs.kde.org/show_bug.cgi?id=400475
Bug ID: 400475
Summary: Windows flash (flicker) when closed
Product: kwin
Version: 5.14.2
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: kwin-bugs-n...@kde.org
Reporter: zy...@gmx.us
Target Milestone: ---
Created attachment 115977
--> https://bugs.kde.org/attachment.cgi?id=115977&action=edit
the bug in action
SUMMARY
Windows exhibit a flash (short flicker) when closed and the Scale or Glide
desktop effect is turned on.
STEPS TO REPRODUCE
1. Turn on Glide or Scale in System Settings under Desktop Effects
2. Load a busy program (for my purposes it was Audacity, after loading and
playing a random audio file). This bug is not always reproducible, may not even
occur with Audacity in particular, is not specific to GTK or Qt, and does *not*
occur in Wayland.
3. Close the window.
OBSERVED RESULT
Window renders desktop effect (Slide or Glide) properly and closes, then the
window is reopened for a split second, and its contents emit a white flash
before disappearing, see included attachment.
EXPECTED RESULT
Window renders desktop effect (Slide or Glide) properly and closes.
SOFTWARE VERSIONS
KDE Plasma Version: 5.14.2
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2
ADDITIONAL INFORMATION
Appeared in 5.14.0, still present as of 5.14.2.
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