https://bugs.kde.org/show_bug.cgi?id=453465
Bug ID: 453465
Summary: Some firefox windows disappear on a session restore on
wayland
Product: kwin
Version: 5.24.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: g.gue...@posteo.net
Target Milestone: ---
SUMMARY
If rebooting or logout / login with several firefox windows opened on several
screens and desktops, some firefox windows disappear on a session restore on
wayland, whereas it works fine on X11 (in fact the windows have gone missing on
wayland even reload fine when re-login back into X11).
I only use several windows for firefox, so this is the only app I could see the
bug, but it might not be limited to it and it is possibly a wider problem.
STEPS TO REPRODUCE
1. Open several firefox windows on several screens and desktops on X11
2. Logout
3. Login on Wayland
4. Logout again
5. Login again
(maybe need to repeat 4. and 5 several times to see the bug)
OBSERVED RESULT
On the first login on Wayland, everything is restored properly, all the firefox
windows are restored. But then on subsequent logins, some of them are missing.
They are not anywhere on any screens or desktops (out of 7 firefox windows,
only 2-3 are restored). When login back into X11, everything restores fine.
This makes me think wayland is just not displaying the windows but they musty
be somewhat still opened/running for them to restore when login back into X11.
EXPECTED RESULT
Everything should restore properly on wayland every time, as it does on X11.
Operating System: KDE neon 5.24
KDE Plasma Version: 5.24.5
KDE Frameworks Version: 5.93.0
Qt Version: 5.15.3
Kernel Version: 5.13.0-40-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i5-8350U CPU @ 1.70GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
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