Sometimes , due to some unknown reason, the touchpad on my Dell XPS hangs while running Ubuntu 10.04. Earlier, I used to restart my system to get that fixed.
After googling around, I found that a whole system restart can be avoided and just a simple touchpad driver restart can fix the problem.
If you are stuck with no mouse movement on your laptop (touchpad) then press the key combinations Alt+F2 and type in
gksudo modprobe -r psmouse
Type in the password, press enter, and then press Alt+F2 again for entering the following
gksudo modprobe psmouse
Thats it. Your mouse pointer will start working again.
If you like to do it through the terminal, then type in gnome-terminal after pressing Alt+F2
When the terminal open up type the following
sudo modprobe -r psmouse
sudo modprobe psmouse
If your usb mouse is getting stuck, then use the following command after pressing Alt+F2
gksudo /etc/init.d/hotplug restart
Thanks to kabus & ChrisTheGeek at UbuntuForums
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