Bug 433782 - Task manager buttons shows incorrect title for some applications
Summary: Task manager buttons shows incorrect title for some applications
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager widgets (other bugs)
Version First Reported In: master
Platform: Arch Linux Linux
: NOR normal
Target Milestone: 1.0
Assignee: Eike Hein
URL:
Keywords: regression
Depends on:
Blocks:
 
Reported: 2021-03-01 10:22 UTC by vyacheslav
Modified: 2021-06-28 09:48 UTC (History)
2 users (show)

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Description vyacheslav 2021-03-01 10:22:59 UTC 
SUMMARY
Since 5.21 task manager buttons shows incorrect title for some applications.
This is happen sometimes for different applications but it is 100% reproducible for Qmmp audio player. Qmmp shows playing file in application title but task manager button has only one word "Qmmp".


STEPS TO REPRODUCE
1. Task manager should display text on buttons (not icons-only view).
2. Run qmmp and start playing any audio file.
3. Compare task manager button text of qmmp and text displayed by kwin when switching through applications using Alt+Tab.

OBSERVED RESULT

EXPECTED RESULT
Text on task manager buttons should same as shows kwin when switching using Alt+Tab. As it was in 5.20 and previous versions.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: ArchLinux
(available in About System)
KDE Plasma Version: 5.21.1
KDE Frameworks Version: 5.79
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Comment 1 vyacheslav 2021-03-24 08:52:02 UTC 
If replace symlink /usr/lib/libtaskmanager.so.6 pointing to libtaskmanager.so.5.20.5 from plasma 5.20.5 it is working as expected.

So problem in libtaskmanager.so
Comment 2 vyacheslav 2021-06-28 09:48:07 UTC 
It seems has been fixed in plasma 5.22.