I've Ubuntu 11.10 and my problem is about the touchpad. At the beginning of my computer it's works fine, but after opening an application or a few minutes, it stops working and I have to use a USB mouse. Someone could help me? Thank you very much:)

-
I am experiencing the exact same behaviour... but uncheck of 'disable touchpad when typing' option didn't help at all. I have ps/2 touch pad before log in (can mouse to password field on gdm). When I log in, mouse immediately stops working. rmmod / modprobe doesnt' seem to help. –  user31489 Oct 31 '11 at 2:12

I had the same problem as well, the only thing that I did was in the terminal:

    unity --replace


after that it hasn't been an issue.

-
Perfect... also replacing the synaptic drivers! :D ;) Thanks –  Manuel Andrés Vélez Oct 18 '11 at 0:37
@ManuelAndrésVélez I also have the same problem. Can you tell me how you replaced the synaptic driver? –  KasunBG Dec 21 '11 at 6:29
This is total overkill -- replace the entire desktop just for one driver? –  Ryan Reich Apr 29 '12 at 21:16
I'm on 12.04, and this doesn't do anything for me. –  Cerin Dec 31 '13 at 3:07

There is another command that works, and is perhaps more direct:

sudo modprobe -r psmouse && sudo modprobe psmouse


The problem is that it is not a permanent solution. I already tried adding psmouse to the /etc/modules file, but the problem is not about the driver not loading, but crashing or something.

Does the unity replacement command work as a "permanent solution"?

-
are you talking about unity --replace for me it did. –  st2011 Oct 23 '11 at 0:46
This worked for me! –  KasunBG Dec 21 '11 at 6:45

If this happents, use Ctrl+Alt+T to open a terminal and type:

synclient TouchpadOff=0

-
This is the best answer. I used to use the modprobe method, but in 12.04, it causes unity or even X to crash. This one does not even need to be root! –  Ryan Reich Apr 29 '12 at 21:16

These solutions didn't work for me (running ubuntu 12.10). The thing that did the trick is:

gsettings set org.gnome.settings-daemon.peripherals.touchpad touchpad-enabled true


Good luck!

-

I was sucessful with the wollowing treatment: I plugged in a USB mouse Navigate to the touchpad and mouse settings (top right button -> system settings -> Mouse and Touchpad) I then unchecked the disable mouse when typing option. Reboot.

Worked fine using this since! Perhaps there is some weird mouse locking issue related to this setting?

-

protected by Community♦Mar 1 '12 at 13:09

Thank you for your interest in this question. Because it has attracted low-quality answers, posting an answer now requires 10 reputation on this site.