Bug 468411 - WindowHeap-based effects show choppy previews for inactive virtual desktops (fine for the active virtual desktop)
Summary: WindowHeap-based effects show choppy previews for inactive virtual desktops (...
Status: RESOLVED DUPLICATE of bug 456280
Alias: None
Product: kwin
Classification: Plasma
Component: effects-window-management (show other bugs)
Version: 5.27.4
Platform: Fedora RPMs Linux
: NOR minor
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-04-12 02:21 UTC by Mintra
Modified: 2024-03-05 16:09 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
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 (1.98 MB, video/mp4)
2023-04-12 02:21 UTC, Mintra
Details

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Description Mintra 2023-04-12 02:21:57 UTC
Created attachment 158028 [details]
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.
Comment 1 Nate Graham 2023-04-13 18:48:35 UTC
Can confirm the issue.
Comment 2 postix 2024-03-05 16:09:18 UTC

*** This bug has been marked as a duplicate of bug 456280 ***