Bug 279881

Summary: „Ghost” windows appear (free space in size of normal windows in taskbar)).
Product: [Plasma] plasma4 Reporter: Wiktor <wikt.sztw+kdebugs>
Component: widget-taskbarAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: normal CC: vkrevs
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:

Description Wiktor 2011-08-11 12:56:27 UTC 
Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

When using KDE for couple of hours sometimes appear „ghost” windows. Free space with size of normal elements near other elements. I don't know how to reproduce this or if this is a specific application that causes this problem. I've fresh installation of KDE from meta-packages. These „ghost” elements are sometimes between other elements, sometimes at start (don't know if in the end of elements list, because it's invisible (if it's on start then I can see that something is wrong, because all elements are moved right).

I'm Using 64bit Arch.

Reproducible: Sometimes

Steps to Reproduce:
Just using KDE.

Actual Results:  
From time to time appear a new „ghost” element. Today I've got two!

Expected Results:  
There should be only real elements.

When I try to r‐click on this free space, I get only Plasma panel options, no kind of specific window options, so I can't check if there should be concrete element.
Comment 1 Wiktor 2011-08-11 13:05:48 UTC 
Now I checked for other bug where rows are messed (show more rows than set in option) and I saw, that many people with that bug has also „ghost” elements. Check this screen-shots: http://bugsfiles.kde.org/attachment.cgi?id=62595 http://bugsfiles.kde.org/attachment.cgi?id=61610 http://bugsfiles.kde.org/attachment.cgi?id=62595 . Maybe is the same bug which messes whole taskbar (rows and „ghosts”)?
Comment 2 Wiktor 2011-08-11 13:11:50 UTC 
And those bug(s) https://bugs.kde.org/show_bug.cgi?id=278891 https://bugs.kde.org/show_bug.cgi?id=224447

I just didn't know that those bugs could be the same problem.
Comment 3 Christoph Feck 2011-08-11 23:47:56 UTC 
Right.

*** This bug has been marked as a duplicate of bug 278891 ***