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I have found this solution from a thread a while ago but its temporary fix only:

This seems to be a bug in 12.04.2. As stated in comments, a simple fix would be unloading the mouse driver and load it again like this:

sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps

This only keeps the touchpad working on this session. To make it permanent one can create a file like /etc/modprobe.d/psmouse.conf (you can choose the name you want, but you must keep the extension) with the following content:

options psmouse proto=imps

~~ Salem's answer to Synaptic touchpad on laptop not working

My question is how to make a permanent file like he was talking about. I don't have any idea how to do that in Ubuntu.

That answer (sudo modprobe -r psmouse && sudo modprobe psmouse proto=imps) works on my 12.04 system but after I have shut down my laptop the weird problem comes back. I don't really know how to make the solution permanent because what he said was that it is just a temporary fix.

Community
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Jdx Bro
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1 Answers1

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Open a Terminal by type CTRL + ALT+T

Copy and paste this 

echo "options psmouse proto=imps" | sudo tee /etc/modprobe.d/psmouse.conf

Enter your password, and you should be good to go.

ElefantPhace
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