Bug 157821

Summary: Taskbar Thumbnails effect render problems
Product: [Unmaintained] plasma4 Reporter: Oliver Putz <Regnaron>
Component: widget-taskbarAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Ill-rendered thumbnail for konqueror (bug #157821)
Ill-rendered thumbnail for parley displaying last application (konqueror) [bug #157821]

Description Oliver Putz 2008-02-14 16:02:31 UTC 
Version:            (using Devel)
Installed from:    Compiled sources
Compiler:          gcc version 4.1.2 20070214 
OS:                Linux

When I use compositing features and the "Taskbar Thumbnails" effect, the thumbnails are shown incorrectly. I encountered two problems:
First of all, the thumbnails are rendered at the wrong position (see any screenshot)
Sencondly, the application displayed in the preview thumbnail does not change when hovering from application A directly and fast to application B. It seems to only change when the mouse cursor is at least some milliseconds off one of the application symbols in the task manager. (Screenshot 2)
However, even though the picture does not change, the thumbnail *does* get updated. (e.g.: A thumbnail of some application A that displays a progress bar will show an the updated progress bar of application A when hovering over application B.)
Regrettably qt-recordmydesktop seems not to be able to capture the displayed thumbnails correctly, so I can only attach screenshots in order to show the problem.
Comment 1 Oliver Putz 2008-02-14 16:03:50 UTC 
Created attachment 23570 [details]
Ill-rendered thumbnail for konqueror (bug #157821)
Comment 2 Oliver Putz 2008-02-14 16:05:19 UTC 
Created attachment 23572 [details]
Ill-rendered thumbnail for parley displaying last application (konqueror) [bug #157821]
Comment 3 Oliver Putz 2008-02-14 16:10:34 UTC 
Remark: My second problems could perhaps be related to bug #157816. The only difference seems to be that bug #157816 seems to talk about the interaction of Taskbar applications and System Tray applications (which works fine for me)
Comment 4 Aaron J. Seigo 2008-02-14 17:36:40 UTC 

*** This bug has been marked as a duplicate of 157816 ***