https://bugs.kde.org/show_bug.cgi?id=431450
Bug ID: 431450
Summary: git-master regression: Alt + Tab out of Wine DXVK
fullscreen windows makes it freeze
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: tempel.jul...@gmail.com
Target Milestone: ---
SUMMARY
When starting a game in Wine fullscreen with DXVK and then pressing Alt + Tab,
the window content freezes/turns black when trying to navigate back into the
fullscreen window.
STEPS TO REPRODUCE
1. Install latest wine-staging from Arch repo, install DXVK into the prefix and
e.g. install Windows version of free Unigine Valley into the prefix and run it
in fullscreen.
https://benchmark.unigine.com/valley
(navigate into "Unigine/Valley Benchmark 1.0/bin" and run "wine browser_x86.exe
-config ../data/launcher/launcher.xml")
2. Alt + tab to desktop (or change virtual desktop).
3. Navigate back into fullscreen window.
OBSERVED RESULT
The window content freezes or stays black.
EXPECTED RESULT
With Kwin 5.20.5, alt + tabbing out and back into Wine fullscreen windows works
normally. This has regressed with kwin git-master.
Workaround: Use borderless mode of games inside wine.
This also happens with compositing entirely disabled before the start of the
game/application. The issue seems to occur with several, if not any game.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch 5.10
KDE Plasma Version: KWin git-master 8d84fe4b6ae26c501e416a5bc5eee8f5cf4a02bd
Mesa 21 git-master + xf86-video-amdgpu, RX 5700 XT
single 1440p display
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