https://bugs.kde.org/show_bug.cgi?id=468257
Bug ID: 468257
Summary: Maximizing then tiling a window, causes it to show
stale stretched contents when other windows are
maximized or unmaximized
Classification: Plasma
Product: kwin
Version: 5.27.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: nyanpas...@tuta.io
Target Milestone: ---
SUMMARY
Some windows will enter a state where they show normal contents initially, but
the animations to maximize/unmaximize other windows cause them to show stale
contents.
STEPS TO REPRODUCE
1. Maximize nearly any window (browsers, Qt5, GTK3/4 apps work, glxgears works,
xterm doesn't).
2. Use Super+Arrow to tile it to half the screen, without an animation.
a. You can stack Super+Up+Left to tile it to a quarter screen, or
Super+Left+Left to unmaximize the window without an animation.
3. Maximize or minimize any other window.
OBSERVED RESULT
The first window (which you tiled out of maximize) shows stale contents from
the last time it was maximized, for the duration of the second window's
(un/)maximize animation. Sometimes part of the window remains stale after the
animation completes.
When no animation is playing, you can interact with the stale window's contents
normally. But if you maximize another window again, the contents revert to the
same stale texture.
EXPECTED RESULT
Windows do not show corrupted contents when un/maximizing other windows.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8
Kernel Version: 6.2.9-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5600X 6-Core Processor
Memory: 15.5 GiB of RAM
Graphics Processor: AMD Radeon RX 570 Series
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B550M DS3H
ADDITIONAL INFORMATION
Unsure if related to Bug 450301?
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