Bug 208707

Summary:	libtaskmanager seem to produce bogus entries under some circumstances
Product:	[Unmaintained] plasma4	Reporter:	Mathias Panzenböck <grosser.meister.morti>
Component:	widget-taskbar	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	andresbajotierra, cfeck
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Unspecified
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Mathias Panzenböck 2009-09-27 19:18:05 UTC

Version:            (using KDE 4.3.1)
Installed from:    Fedora RPMs

Under some (very rare!) circumstances libtaskmanager seem to produce bogus entries. These entries are doubles of other real entries but are on all desktops and stay even if the corresponding task is closed. First I thought this is a bug of my taskbar applet (Smooth Tasks[1]) but upon closer look I discovered that the bogus entries are in fact in the root group of the group manager, which is managed by libtaskmanager.

Michal Odstrčil[2] has the theory that it has something to do with the "only group when taskbar is full" feature. He thinks it only happens when you change the full limit by big steps (e.g. about the size of a step from 20 to 100). But the bug is very unpredictable. In fact I haven't experienced it a while now (ever since I added some debug output to debug this issue). However, Michal did manage to reproduce it more often (and sent me the debug output).

[1] http://www.kde-look.org/content/show.php/Smooth+Tasks?content=101586
[2] http://bitbucket.org/michalodstrcil/smooth-tasks/overview/

Comment 1 Christoph Feck 2009-09-27 19:54:35 UTC

I can confirm that with current trunk I also get sometimes taskbar entries that are invalid, sometimes only an icon, but no text, sometimes with both text and icon. Trying to close those entries using RMB menu does not work, they simply stay until I logout.

I am reassigning it to plasma developers, as those are more familar with libtaskmanager.

Comment 2 Dario Andres 2009-09-27 20:04:26 UTC

I guess this should be merged with bug 202199. Can you confirm it ? Thanks

Comment 3 Mathias Panzenböck 2009-09-27 20:19:21 UTC

Yup, this bug seems to be a duplicate, sorry. At least I provided a theory on when it happens.

*** This bug has been marked as a duplicate of bug 202199 ***