While its another 'bodge' rather than a fix, you can downgrade compiz to the 10.10 version which should give you a working setup.
http://www.webupd8.org/2011/05/how-to-downgrade-to-compiz-086-in.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/764051 Title: Second monitor useless in dual desktop mode To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/764051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs