Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've got a Samsung Series 9 notebook (900x3a) running Ubuntu Natty. It's running absolutely smoothly except for some times when the touch pad gets "hiccups" and appears to recognize an additional finger blocking it for normal mouse moves. Toggling the touch pad using the function keys does not help, suspending and resuming it does, tough.

Is there an easier way to reset the synaptics driver than going to standby mode and waking the notebook up again?

share|improve this question

This worked to reset my touchpad.

sudo rmmod psmouse
sudo modprobe psmouse

If there is no terminal window open, press Alt + F2, type gnome-terminal and press Enter.


share|improve this answer
It works on ASUS X44C Ubuntu 12.04 32 bit after touchpad freezed. – Ade Malsasa Akbar Oct 12 '14 at 6:55
AWESOME!!! It worked TWICE in "Ubuntu" VERSION="14.10 (Utopic Unicorn)", with KDE, 64 bit in a Lenovo SL410. I don't know WHY the tap gesture sometimes stops working, but these removing and adding the psmouse module, DOES work. – David L Nov 28 '14 at 15:24

Try pressing Fn+F7 or Fn+F8. One of those F keys should control your touchpad. The other is usually sound or video input

share|improve this answer

I think that should be Fn+F5. Not sure if that will help after a freeze though.


share|improve this answer

another option it seems is this:

echo -n "reconnect" > /sys/bus/serio/devices/serioX/drvctl
echo -n "reconnect" > /sys/devices/platform/i8042/serioX/drvctl

you can run find /sys -name serio to find available devices.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.