Just upgraded to 14.04 and hit this or a similar problem. After opening the Dash, display flashes continually and is not responsive to keyboard. After a few minutes like this even a ssh connection from a remote system is not responsive. Lots of NVRM errors in the kernel.log.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1251042 Title: 10de:064c Ubuntu gnome freeze after start - nvidia drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1251042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs