On further investigation it appears that Xinerama does not play nice with compiz. I was able to solve the issue with the ati box by:
-Opening Catalyst Control Panel -Display Manager -Multi-Display tab -Set to "Multi-display desktop with display(s) 1" It appears that you should be able to use NVIDIA X Server Settings to configure TwinView rather than the Separate X screen's + Xinerama. It's under the "X Server Display Configuration" -> "Configure" button. -- compiz broken with latest updates and nvidia display config https://bugs.launchpad.net/bugs/558875 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

