https://bugs.kde.org/show_bug.cgi?id=456039
Bug ID: 456039
Summary: 5.25.1 "shading" a gtk window continues to display the
window's contents
Product: kwin
Version: 5.25.1
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: robert.burc...@gmail.com
Target Milestone: ---
Created attachment 150190
--> https://bugs.kde.org/attachment.cgi?id=150190&action=edit
video capturing the defect
SUMMARY
Shade a gtk window (evolution, brave, firefox) by double clicking title bar
(or however you shade your window). The window decorations collapse as they
should, however the original window contents continue to display. If you drag
the collapsed title bar around, the zombie window contents paint away revealing
the desktop behind the original window area. Unshading the window back to
normal behaves as expected and the full window is properly displayed.
STEPS TO REPRODUCE
1. Start a gtk app like evolution or brave, etc.
2. Double click the title bar, or otherwise shade the window.
3. Note the window decorations, border etc display the collapse/shade effect,
however the original window contents continue to display right where they were.
OBSERVED RESULT
See #3 above
EXPECTED RESULT
The window should shade to just the title bar, and the area behind the original
window should be visible.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Plasma 5.25.1
(available in About System)
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5
ADDITIONAL INFORMATION
nvidia-drivers 515.48.07, kernel 5.15.11, both of which are unchanged with
previous versions of plasma that do not demonstrate this behavior.
I suspect there may be a regression introduced with the fix applied for
https://bugs.kde.org/show_bug.cgi?id=450582
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