Bug 290522

Summary: KWin/Plasma: extender pop-ups flicker when hiding
Product: [Plasma] kwin Reporter: ultr <ultr>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: minor CC: plasma-bugs, ultr
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Debian unstable   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: kde-widget-closing-animation-flicker.mpeg

Description ultr 2012-01-03 18:55:37 UTC
Created attachment 67405 [details]
kde-widget-closing-animation-flicker.mpeg

Version:           unspecified (using KDE 4.7.4) 
OS:                Linux

I don't know if this should be assigned to KWin or Plasma. Please reassign.

Bug:
Extender pop-ups (devices list, calendar emerging from clock widget, etc.) flicker when they are hidden.
Also panels behave in the same way when they are set to hide themselves.

Flickering appears in the last part of hiding, like 70%-90% of the pop-up width.
Pop-up becomes visible again at this position and is then hidden again.
Or this is how it looks like.

Video attached.

Reproducible: Always

Steps to Reproduce:
1) enable compositing
2) show a pop-up
3) hide it

Actual Results:  
Pop-ups flicker when hiding.

Expected Results:  
No flickering of hiding pop-ups.

I have checked that this behavior is NOT related to the Blur effect.
Comment 1 ultr 2012-01-03 18:57:33 UTC
Also this is a regression. In KDE 4.6.x this bug did not occur.
Comment 2 Thomas Lübking 2012-01-03 20:04:35 UTC

*** This bug has been marked as a duplicate of bug 287602 ***