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[Mahendra Tallur <600178@xxxxxxxxxxxxxxxxxx>]

I'm not sure my comment will be relevant, but I've just noticed some
tearing *at the top of the screen only* (that's barely noticeable -- in
openGL 2D games like SMC for instance), when using nvidia proprietary
drivers + compiz.

Please note I'm doing the following which usually gives a flawless output but not now as of Ubuntu 10.10 :
- Option "DynamicTwinView" "false" in /etc/Xorg.conf so that the right refresh rate is given by the driver (I hope nvidia will fix it one day, so that it's not necessary anymore)
- nvidia-settings : I tick sync to VBL everywhere
- CCSM : I tick : autodetect vsync + sync to VBL 

This bug was definitely not there *before* Lucid. Was probably there in
Lucid though. It's very noticeable in SMC or Steelstorm for instance but
not much in regular 3D apps with no "2D scrolling".

Cheers !

-- 
Screen tearing when dragging window, in videos and other large screen redraws
https://bugs.launchpad.net/bugs/600178
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