Bug 414242

Summary: [Wayland] KWin Can't Change To Another Window While An VLC Instance Is At Fullscreen (Probably With Any Qt 5 Fullscreen App)
Product: [Plasma] kwin Reporter: Alberto Díaz López <takuya>
Component: wayland-genericAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: bugseforuns
Priority: NOR    
Version First Reported In: 5.17.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Alberto Díaz López 2019-11-17 18:33:09 UTC 
SUMMARY
KWin under Wayland session doesn't allow to change the window while having a fullscreen VLC instance. When you try it, the focus changes in fact, but the window at screen is still VLC.

STEPS TO REPRODUCE
1. Launch VLC.
2. Open a video.
3. Enter in VLC fullscreen.
4. Try to change the window to another app.

OBSERVED RESULT
The preview works fine and the focus change in fact, but the window remains at VLC.
Updated: Sometimes it works, i don't know the details to specify here, just when i was creating this bug, i checked again to assure and it's working fine.
PS: It was bothering me too that with Firefox was happening the same before Plasma 5.17, but i suppose that KWin new fixes and changes solved that, cause i don't experiment those bugs (while i was watching a YouTube video for example at fullscreen), anymore.

EXPECTED RESULT
KWin should allow to change the window normally, as it does in X11 session.

SOFTWARE/OS VERSIONS
Linux: 5.3.11
KDE Plasma Version: 5.17.3
KDE Frameworks Version: 5.64
Qt Version: 5.13.2
Comment 1 Vlad Zahorodnii 2019-11-20 14:44:24 UTC 
Could you please clarify what you mean by "change window?"
Comment 2 Alberto Díaz López 2019-11-20 17:52:01 UTC 
(In reply to Vlad Zahorodnii from comment #1)
> Could you please clarify what you mean by "change window?"

Sure, tabulate to other opened window. I'm not sure how to express it well, sorry. When you use Task Switcher (Alt + Tab).
Comment 3 Vlad Zahorodnii 2019-11-21 13:06:06 UTC 
Not a problem at all. So if I understand you correctly, the issue seems to be that the application that has just received the focus remains below the vlc window, is that correct?
Comment 4 Alberto Díaz López 2019-11-21 16:54:25 UTC 
(In reply to Vlad Zahorodnii from comment #3)
> Not a problem at all. So if I understand you correctly, the issue seems to
> be that the application that has just received the focus remains below the
> vlc window, is that correct?

Exactly. But as i said, it's really strange, when i was writing this description, i tried again and it was working fine. And now i'm trying again and it's working normally. I can't explain it.
Comment 5 Patrick Silva 2020-06-15 04:54:11 UTC 
duplicate of bug 375759?
Comment 6 Vlad Zahorodnii 2021-10-05 14:58:25 UTC 

*** This bug has been marked as a duplicate of bug 439405 ***