1721841 - Firefox becomes unusable when kwin compositing stops

Status: RESOLVED DUPLICATE of bug 1706934

(Core :: Audio/Video: Playback, defect)

Description

[Mufeed Ali]

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0

Steps to reproduce:

1. Open Firefox on Fedora KDE or any other KDE-based distro.
2. Play a full screen video with mpv (which disables kwin's compositing)
3. Exit full screen or close mpv
4. Go back to Firefox

Actual results:

Firefox will be stuck on the last frame before disabling compositing and will not be interactive

Expected results:

Firefox should be normally usable

Comment 1

[Mufeed Ali]

Closed bug report on kwin: https://bugs.kde.org/show_bug.cgi?id=440154
Other users facing the same issue: https://www.reddit.com/r/archlinux/comments/mvhfvy/firefox_8801_with_vaapi_breaks_when_using_mpv/ and https://bbs.archlinux.org/viewtopic.php?pid=1969575

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[r01opd9cujmm]

Seems like a duplicate of Bug 1706934?

Comment 4

[Mufeed Ali]

Sorry, didn't pop up in my search. :)