This bug looks like this one: https://bugs.launchpad.net/xorg- server/+bug/1220426
workaround is to use a usb mouse instead of the touchpad. Nikhil Mahale (nmahale) created a working patch: https://bugs.launchpad.net/xorg-server/+bug/1220426/comments/171 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1387134 Title: when enabled nvidia graphics card, desktop freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1387134/+subscriptions _______________________________________________ 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