This is still an issue in 12.10, kernel 3.5.0-21-generic. I can reproduce it by simply closing the lid on my Thinkpad T530. I have mine set to only turn off the screen when the lid is closed and not suspend. I can confirm that Adolfo's workaround of dropping to a terminal fixes the issue.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/991707 Title: Mouse pointer (touchpad) gets stuck often To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/991707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs