For those who have an Intel graphics card, I found this discussion that might be relevant : http://askubuntu.com/questions/73909/screen-tearing-in-11-10-with-intel-graphics It points to another bug in launchpad : https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/755841
There is a proposed workaround for Gnome-shell. Unfortunately, it did not work for me (but I use Unity-2D and have a Core i5-650, not a Sandy Bridge)
For those who have an Intel graphics card, I found this discussion that might be relevant : http:// askubuntu. com/questions/ 73909/screen- tearing- in-11-10- with-intel- graphics /bugs.launchpad .net/xserver- xorg-video- intel/+ bug/755841
It points to another bug in launchpad : https:/
There is a proposed workaround for Gnome-shell.
Unfortunately, it did not work for me (but I use Unity-2D and have a Core i5-650, not a Sandy Bridge)