Comment 360 for bug 550625

Bob: It will finish, it just takes a while to complete. Yours wasn't even halfway done :)

You want to capture the output to a file, i.e. 'alps-reg-dump > reg-dump.txt'. If you let it run to completion it will restore your touchpad functionality, but if you interrupt it your touchpad will fail to work. When this happens the following should get it back.

  for f in /sys/bus/serio/devices/serio*; do
      desc=$(cat "${f}/description");
      if [ "$desc" = "i8042 AUX port" ]; then
          echo -n "psmouse" | sudo tee "${f}/drvctl";
      fi;
  done

You will be prompted for your sudo password when running the above.