https://bugs.kde.org/show_bug.cgi?id=468411

            Bug ID: 468411
           Summary: Allow various effects (overview, desktop grid, present
                    windows) to do proper video preview among virtual
                    desktops.
    Classification: Plasma
           Product: kwin
           Version: 5.27.4
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: effects-overview
          Assignee: kwin-bugs-n...@kde.org
          Reporter: hedim74...@fgvod.com
  Target Milestone: ---

Created attachment 158028
  --> https://bugs.kde.org/attachment.cgi?id=158028&action=edit
Sorry for the aweful video quality, I tried compressing with h265 but couldn't
get it to the limit of 4Kb, so used a online service

Currently if a video is playing on a different virtual desktop other than the
used is currently on, video playback will show up as choppy in various desktop
effects (overview, desktop grid, present windows).  

STEPS TO REPRODUCE
1. Open a video on a virtual desktop.
2. Switch to a different virtual desktop (Don't move you video player on this
new desktop).
3. Activate any effects (overview, desktop gird, present windows)
4. Examine that video playback is choppy

OBSERVED RESULT
Choppy video playback

EXPECTED RESULT
Smooth video playback 

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
I am not a technical user, but I think the problem is not limited to videos
only, I think the problem is this effects can't properly render windows where
stuff is going on, for example  Audio Visualizer or when a terminal is
continuously printing out large amount of output.

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