Bug 433782

Summary:	Task manager buttons shows incorrect title for some applications
Product:	[Plasma] plasmashell	Reporter:	vyacheslav <galdralag>
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Eike Hein <hein>
Status:	RESOLVED FIXED
Severity:	normal	CC:	nate, plasma-bugs
Priority:	NOR	Keywords:	regression
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

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.