After upgrading my system from 14.04 to 14.10 I have a problem with my touchpad: cursor moves.. hm.. from time to time. I mean when I try to move it in 90% cases it doesn't happen. But, if I click the touchpad and move it simultaneously - it moves. Where should I look to solve this issue? Laptop: Lenovo E440
Found a fix here: Synaptic touchpad on laptop not working
sudo modprobe -r psmouse sudo modprobe psmouse proto=imps
I have the same problem. And I found a solution.