Post #103 in this bug report seemed to fix this issue for me on my HP dv7 laptop (https://bugs.launchpad.net/bugs/549727). I've rebooted several times, and I am now able to enable and disable my touchpad without the gnome menus or keyboard breaking.
-- Keyboard does not work when touchpad disable button pressed https://bugs.launchpad.net/bugs/571638 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs