video tearing when composite is enabled on nvidia card
|NVIDIA Drivers Ubuntu||
Declined for Maverick by Sebastien Bacher
After upgrading to Karmic recently, I found serious image tearing during video playback. The tearings mostly occur at the upper part of the screen, especially when there is a horizontally moving object in the video. Perhaps there was also video tearing when I was using Jaunty, but not obvious enough. I've tried to set "Sync to VBlank" in nvidia-settings and compiz config settings manager, and also the correct refresh rate in compiz, but none helped. I included a screenshot to show the tearing problem. Note that I only see the tearings marked with red in video playback, the tearings marked with blue only appears in screenshots.
When metacity is used instead of compiz, the tearings are still there. And I tried nvidia drivers 173,185,190, the results are the same. Later I found by disabling composite in xorg.conf, the tearing is gone. But then I won't be able to use compiz. So I think the problem lies in composite extension of nvidia driver.
Date: Sun Oct 11 11:02:24 2009
DistroRelease: Ubuntu 9.10
MachineType: Quanta TW8/SW8/DW8
Package: nvidia-glx-185 185.18.36-0ubuntu4
Uname: Linux 2.6.31-13-generic x86_64
fglrx: Not loaded
architecture: x86_64kernel: 2.6.31-13-generic
|tags:||added: lucid maverick|