Bug 429785 - Window thumbnail images are invisible on Wayland
Summary: Window thumbnail images are invisible on Wayland
Status: RESOLVED DUPLICATE of bug 427826
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager (show other bugs)
Version: 5.20.3
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Eike Hein
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-29 00:52 UTC by AK-47
Modified: 2020-11-30 06:32 UTC (History)
2 users (show)

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

Attachments
Screenshot of issue (21.89 KB, image/jpeg)
2020-11-29 00:52 UTC, AK-47 		Details
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Description AK-47 2020-11-29 00:52:44 UTC 
Created attachment 133718 [details]
Screenshot of issue

SUMMARY
Window thumbnails on the task bar are often invisible. The thumbnail pane itself shows, but no thumbnail image.

STEPS TO REPRODUCE
1. Hover over a window in the task bar.
2. Wait until the thumbnail pane pops up.

OBSERVED RESULT
There is no thumbnail image.

EXPECTED RESULT
The thumbnail image should appear.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Workstation 33
(available in About System)
KDE Plasma Version: 5.20.3
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1

ADDITIONAL INFORMATION
This is easiest to reproduce with X11 apps running under Wayland session.
The thumbnail does appear when the application window contents are updated (eg. playing video or image slideshow).
Comment 1 Till Schäfer 2020-11-29 15:48:47 UTC 
I think this is a duplicate of Bug 427826. Feel free to reopen, if you think otherwise.

*** This bug has been marked as a duplicate of bug 427826 ***
Comment 2 AK-47 2020-11-30 06:32:16 UTC 
Looks like it is, my apologies. Consider this report as extra information in relation to that bug.