Bug 279164 - Items on task manager/bar flicker heavily
Summary: Items on task manager/bar flicker heavily
Status: RESOLVED FIXED
Alias: None
Product: plasma4
Classification: Plasma
Component: widget-taskbar (show other bugs)
Version: 4.7.0
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-08-02 11:58 UTC by J Brauchle
Modified: 2014-04-28 13:05 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
Video of taskbar flickering (521.40 KB, video/quicktime)
2011-08-02 12:08 UTC, J Brauchle 		Details
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Description J Brauchle 2011-08-02 11:58:40 UTC 
Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

The items on the taskbar start to flicker heavily, change in size (from full height to half the height of the task bar) as well as overlap each other. 

The frequency is too high to be able to hit an item successfully. Thus the taskbar becomes unusable.

Please see the attached video!

Reproducible: Couldn't Reproduce

Steps to Reproduce:
It seems that switching to a virtual desktop with more items that fit on one line, this behavior starts.


Expected Results:  
The taskbar arrangement should be stable as long as no programs are started or closed.
Comment 1 J Brauchle 2011-08-02 12:08:49 UTC 
Created attachment 62464 [details]
Video of taskbar flickering
Comment 2 J Brauchle 2011-08-03 21:52:38 UTC 
It looks like items are grouped and ungrouped very quickly, thus resulting in the flickering...
Comment 3 David Edmundson 2013-06-05 23:20:04 UTC 
Thank you for your report.

The taskbar applet has been completely rewritten for KDE Workspaces 4.11
I cannot reproduce this bug with the new version.

Please reopen this bug if you encounter this in 4.11 onwards.
Comment 4 Oli Warner 2014-04-28 13:05:28 UTC 
I have this in 4.11 (4.11.8-0ubuntu6). I don't know what else I can provide to make debugging it useful but I'm using the proprietary Nvidia driver. It's usually their fault.