I got it to work on thinkpad T420 by using sudo xinput set-int-prop 11 "Synaptics Off" 8 0 the bug happens because there are two properties governing the touchpad "on" status "device Enabled" and "Synaptics Off" and they must be set to 1 and 0 respectively if the touchpad is to work the problem arised because they switched asynchronously when you enable or disable the device. I couldn't change the device enabled property so i changed the "Synaptics Off" to 0 to get them back into sync. you can now disable and enable the device however i didnt yet restart to see what happens next time i boot up
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/804109 Title: can't enable touchpad in Ubuntu 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/null/+bug/804109/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs