This happened again for me (when I was using Firefox), and switching to the linux console (terminal) (Ctrl-Alt-F1) and back (Ctrl-Alt-F7) did help. (Thanks for the hint!)
Each time I switch back to X, a message in the log appears: [ 7699.679] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found It looks absolutely OK, no explanation for the cause of the error. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1035208 Title: touchpad stops working (moving the pointer doesn't work) To manage notifications about this bug go to: https://bugs.launchpad.net/ac100/+bug/1035208/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs