https://bugs.kde.org/show_bug.cgi?id=400476
Bug ID: 400476
Summary: Blur rendering errors with underlying GTK windows
Product: kwin
Version: 5.14.2
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: scene-opengl
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 115978
--> https://bugs.kde.org/attachment.cgi?id=115978&action=edit
video
SUMMARY
Rendering defects appear in blurry windows, menus or popups when on top of one
or more GTK windows.
STEPS TO REPRODUCE
1. (Not always reproducible.) Run a GTK application (for my purposes it was
Spotify) and another larger GTK application on top of it (to increase your
chances of the bug appearing).
2. Run a KDE window (Konsole with blur on) or pull open a panel menu (Kicker or
Kickoff) or popup.
3. If you are using Spotify or Lollypop, start switching between audio tracks,
this makes it appear sooner.
OBSERVED RESULT
There are rendering defects present in the overlaid blurry windows that
correspond to the borders of the underlying non-maximized GTK window(s).
EXPECTED RESULT
The blurry windows are unaffected by the underlying windows.
SOFTWARE VERSIONS
KDE Plasma Version: 5.14.2
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2
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