I had the same problem. it ended up being a problem with the nvidia driver (I have nvidia Geforce GT 540M)
solved it by install bumblebee: sud apt-get remove nvidia-current sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get install bumblebee bumblebee-nvidia hope it works for you as well -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1068571 Title: Upgrade from 12.04 -> 12.10. No window manager. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1068571/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
