Bug 434036

Summary: Plasma widgets show up in task manager.
Product: [Plasma] plasmashell Reporter: German P <germanp82>
Component: Task Manager and Icons-Only Task ManagerAssignee: Eike Hein <hein>
Status: RESOLVED DOWNSTREAM    
Severity: normal CC: nate, nicolas.fella, notmart, plasma-bugs
Priority: NOR    
Version: 5.21.2   
Target Milestone: 1.0   
Platform: Manjaro   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=403243
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Picture showing the plasma "app" in the task manager

Description German P 2021-03-06 00:47:52 UTC
Created attachment 136419 [details]
Picture showing the plasma "app" in the task manager

SUMMARY
When a widget is opened like the Application launcher or the volume level popup, An application named "Plasma" appears in the task manager. When the widget is closed the icon disappears.

STEPS TO REPRODUCE
1. Open a widget ex. Application launcher

OBSERVED RESULT
A new icon appears in the task manager.

EXPECTED RESULT
Plasma widgets shouldn't appear in the task manager, they are not applications.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro, Kernel 5.11.2
(available in About System)
KDE Plasma Version: 5.21.2
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Comment 1 Nicolas Fella 2021-03-06 16:43:58 UTC
Are you using X11 or Wayland?
Comment 2 German P 2021-03-06 19:30:59 UTC
This happens only on wayland.
Comment 3 Marco Martin 2021-03-08 16:19:44 UTC
I've seen it happenin as well, kindof a race condition as we can't set the window type early enough. is the same reason why in plasma mobile sometimes thewindow layer that shows the running tasks gets listed in itself
Comment 4 Nate Graham 2021-03-08 19:11:46 UTC
Cannot reproduce, but it reminds me of Bug 403243. Perhaps they could be somehow related.
Comment 5 German P 2021-03-08 20:25:18 UTC
It is fixed, this was the problem:
Manjaro's plasma-desktop package doesn't include:
plasma-wayland-session
kwayland-integration
plasma-wayland-protocols

Missing some of this packages make plasma wayland work but with weird behaviour (the widgets in the taskbar is just one of many).
Comment 6 Nate Graham 2021-03-08 20:42:12 UTC
That would be problematic, yeah. Please do report this to the Manjaro packagers so they can include the necessary packages. Other users using the Plasma Wayland session on Manjaro will benefit as well.