solved with this: http://ubuntuforums.org/showpost.php?p=12303071&postcount=7
-- 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/1070865 Title: GPU fan always at 100% with either Nouveau and Nvidia drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1070865/+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