Bug 193074

Summary: minimizing active window is slow
Product: [Plasma] kwin Reporter: Tim Robertson <t.j.k.robertson>
Component: generalAssignee: KWin default assignee <kwin-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:

Description Tim Robertson 2009-05-18 05:28:01 UTC 
Version:            (using KDE 4.2.85)
OS:                Linux
Installed from:    Compiled From Sources

When minimizing the active window, the animation is very very jerky. However, when minimizing an inactive window (the window behind the active one, for example) the animation is buttery smooth. The problem is present with both minimize animations - normal and magic lamp - and was not present in 4.2.3. The fact that it only occurs with the active window leads me to believe it has something to do with focus handling, since once the window is minimized, focus has to pass to the next window in the stack. Just for good measure, here are my specs:
Core 2 Duo T7200 (2.0 GHz)
nVidia Quadro NVS 110m 256 MB (equivalent to a 7300)
2 GB RAM
Running Ubuntu 9.04
The bug is still present even with no other kwin plugins active.
Comment 1 Tim Robertson 2009-05-18 05:59:20 UTC 
Forgot to add: I had to disable opengl flipping because it caused strange behavior when minimizing windows. The plasma desktop background flickers through and the animation is still somewhat jerky, but less so. That may have something to do with it as well.
Comment 2 Martin Flöser 2009-05-18 10:49:08 UTC 

*** This bug has been marked as a duplicate of bug 191694 ***