I have installed 12.04 alongside Windows 7 on my Dell XPS 15z. The model came with a cypress trackpad for Windows 7. After installing Ubuntu, I realized the trackpad was not working at all. I tried installing Synaptics Touchpad in Windows, still it didn't work in Ubuntu. I searched on the net for similar problems but neither of them worked for me.
Here's what I did:
rc.localfile to add the following lines in the file:
sudo modprobe -r psmouse
sudo modprobe psmouse proto-imps
[Also tried proto-bare, proto-exps]
Tried to uncheck "Disable Touchpad while Typing" under Mouse Settings, but I could see no touchpad tab under that.
xinput list showed no touchpad. So maybe the problem is that touchpad is not detected at all?
Please guide me through this problem. I am a first time Ubuntu user and don't have much knowledge about it.
Are there any specific Ubuntu drivers for making Touchpad work?