tl;dr: use synclient to setup your touchpad instead of Mouse & Touchpad options on System Settings.
After installing Ubuntu 15.04 on my new HP 240, my first reaction was “well, my touchpad sucks, it is too slow”. But, what I tried to say was “it is not sensitive enough”. I use my touchpad (and probably you too with the tip of my finger. But, in order to use my new laptop, I need to use almost my whole fingertip! So, after googling for a while, I found this post with the solution: synclient. This utility enable us to configure our touchpad in a simple way. There is a lot of options to set up, but in order to solve this problem, you only need to change FingerLow and FingerHigh. To know what is your current configuration, execute:
synclient | grep FingerLow
synclient | grep FingerHigh
In order to change these values, execute:
synclient FingerLow=8 && synclient FingerHigh=10
Higher values implies less sensitivity. Finally, to make this change persisntent after rebooting, do the following:
sudo cp 50-synaptics.conf 50-synaptics.conf.bak
sudo vim 50-synaptics.conf
And add “FingerLow” and “FingerHigh” in the corresponding block as follows:
Identifier "touchpad catchall"
Option "FingerLow" "8"
Option "FingerHigh" "10"
It is possible that the file
does not even exist on your computer. In this case, you can create from scratch. More info on Ian’s blog.