Well I haven't measured the exact durations he mentions, but since upgrading to Oneiric, my experience with secondary screens shows most of the symptoms the OP describes.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/841792 Title: Enabling/disabling secondary screen is flaky/unstable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-settings/+bug/841792/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs