I'm using a laptop with built-in touch-pad that works in Windows 7. But after I switched to Ubuntu 12.04 LTS, it's not working now.
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can you check whether it is on? more info here: http://askubuntu.com/questions/257035/how-do-i-fix-the-mouse-after-pairing-with-bluetooth/260850#260850 – don.joey Feb 28 '13 at 12:05
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1I have enable it, but it's still not working. – Herks Feb 28 '13 at 12:11
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9I had a similar issue on 12.04.02. Press Ctrl+Alt+T to open a terminal and paste those commands to check if they solve your problem: `sudo modprobe -r psmouse && sudo modprobe psmouse proto=imps` – Salem Feb 28 '13 at 13:19
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@Salem please turn your comment info an answer.. – don.joey Feb 28 '13 at 14:08
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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
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Yess! Had same problem and using Google came here and this solution worked. Thanks! – Tõnu Samuel Sep 14 '13 at 05:03
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2This still happens in 14.04 but this fix still fixes it although I can't get it to execute on start of the machine so I am currently stuck running it manually each time... – Ed Bishop Mar 04 '15 at 16:40
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1I came across this issue upgrading from 16.04 to 18.04 on a Dell XPS 13. However: The edit to add psmouse.conf does not work, the fix does not stick after a reboot. – irwinr Jul 06 '18 at 07:50
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1Had the same issue with 18.04 on Dell XPS 13. Unloading psmouse removes scrolling and stuff though :( – David Yell Dec 14 '18 at 20:01