606856 - Tearing on videos while not in fullscreen, in kde

Status: UNCONFIRMED

(Firefox :: General, defect)

Description

[someitalian123]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.11) Gecko/20101013 Ubuntu/10.10 (maverick) Firefox/3.6.11
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.11) Gecko/20101013 Ubuntu/10.10 (maverick) Firefox/3.6.11

I'm not sure if this is a bug for firefox, kde, kubuntu, or adobe flash player but every time I go on an online video site like youtube I see a lot of tearing. And when I say a lot of tearing I mean tearing when their is barely any motion at all. I know that my video driver isn't the problem because when I switch to fullscreen any tearing that their might be is barely noticeable. Also I haven't noticed the problem while in gnome. 

Reproducible: Always

Steps to Reproduce:
1. Watch an online video while in kde
2.
3.
Actual Results:  
Tearing while watching videos regardless of the amount of motion

Expected Results:  
smooth video playback

Comment 1

[Josh Triplett]

This sounds quite a bit like a vsync problem with compositing.  Can you reproduce the problem if you run a different window manager, or turn off compositing in KDE (if you can still do that)?  If not, then please report this as a bug against KDE.