Disabling compiz and not use OpenGL based application solve the problem ...
-- Xorg freezes when using OpenGL on Intel i945 https://bugs.launchpad.net/bugs/501875 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp