Bug 364378

Summary:	Zanshin disappears from Task Manager after virtual desktop switch
Product:	[Plasma] plasmashell	Reporter:	Kai Uwe Broulik <kde>
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Eike Hein <hein>
Status:	RESOLVED FIXED
Severity:	normal	CC:	plasma-bugs-null
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:	http://commits.kde.org/plasma-workspace/d1f32fb083cbb48e1baeda3f280c0dd838c0eb2c	Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	xprop of Zanshin window

Description Kai Uwe Broulik 2016-06-16 13:33:21 UTC

Zanshin disappears from Task Manager after I switch virtual desktops. It affects both the KDE4 and "Next" variant.

Reproducible: Always

Steps to Reproduce:
1. Start Zanshin
2. Make sure you have at least two virtual desktops
3. Switch to other virtual desktop
4. Switch back to virtual desktop where Zanshin is

Actual Results:  
Zanshin window no longer shows up in task manager. If I open a new window, Zanshin magically re-appears

Comment 1 Kai Uwe Broulik 2016-06-16 13:34:45 UTC

Created attachment 99527 [details]
xprop of Zanshin window

Comment 2 Kai Uwe Broulik 2016-06-16 13:35:01 UTC

xprop of its leader window:
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 9404732
SM_CLIENT_ID(STRING) = "101b519913014b000146608376500000011760079"
WM_CLIENT_LEADER(WINDOW): window id # 0x4800004

Comment 3 Eike Hein 2016-06-16 19:33:24 UTC

Git commit d1f32fb083cbb48e1baeda3f280c0dd838c0eb2c by Eike Hein.
Committed on 16/06/2016 at 19:33.
Pushed by hein into branch 'Plasma/5.7'.

Fix cache invalidation for TasksModel::launcherCount.

Fixes regression from 6e72674a.

Testers: dfaure

M  +4    -8    libtaskmanager/tasksmodel.cpp

http://commits.kde.org/plasma-workspace/d1f32fb083cbb48e1baeda3f280c0dd838c0eb2c