https://bugs.kde.org/show_bug.cgi?id=422658
Bug ID: 422658
Summary: Firefox and Brave windows become unresponsive under
certain circumstances
Product: kwin
Version: 5.18.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: raitarohik...@protonmail.com
Target Milestone: ---
SUMMARY
A while ago I opened a bug for Waterfox
https://github.com/MrAlex94/Waterfox/issues/1057 I noticed now this is not
Waterfox specific and instead it seems to be a kwin issue because I have this
issue in Firefox 77.0.1 and even in Brave 81.1.9.76 both under KDE Neon 5.18.5
on another laptop, and Waterfox on this laptop running Manjaro (details below).
STEPS TO REPRODUCE
I mention that the steps in that github bug report are not the only things that
cause this! Also:
1. Open firefox or brave and place the window on another virtual desktop
2. Play some video on that desktop
3. Come back to it after... a while, not exactly sure how much
4. Window is frozen or transparent now
OBSERVED RESULT
For some reason the window is not responsive, it seems "frozen" but audio still
plays. Brave still responds to mouse events (timeline for a video shows up on
mouse hover as observed in an OBS test recording of this for a stream done in
Brave), whereas Firefox mostly becomes transparent and additionally blurry. A
simple kwin_x11 --replace seems to fix the issue, and then it comes back.
EXPECTED RESULT
These windows should not become unresponsive like that. This becomes especially
annoying when I need to record some stream and then this happens.
SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.70.0
Qt Version: 5.14.2
Kernel Version: 5.4.43-1-MANJARO
OS Type: 64-bit
Same stuff for KDE Neon 5.18.5 but kernel is 5.3.0-54-generic instead.
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