my touhpad is too slow (not so sensitive)!

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:

cd /usr/share/X11/xorg.conf.d/
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:

Section "InputClass"
 Identifier "touchpad catchall"
 Driver "synaptics"
 MatchIsTouchpad "on"
 MatchDevicePath "/dev/input/event*"
 Option "FingerLow" "8"
 Option "FingerHigh" "10"
EndSection

It is possible that the file /usr/share/X11/xorg.conf.d/50-synaptics.conf does not even exist on your computer. In this case, you can create from scratch. More info on Ian’s blog.

Update: Natural scrolling

If you want to reverse the scroll direction, add these two lines in the previous file (source):

Option "VertScrollDelta" "-20"
Option "HorizScrollDelta" "-20"

where -20 is the speed. You can test the change using this command:

synclient VertScrollDelta=-20

 

Your 50-synaptics.conf should look like this:

Section "InputClass"
      Identifier "touchpad catchall"
      Driver "synaptics"
      MatchIsTouchpad "on"
      MatchDevicePath "/dev/input/event*"
      Option "FingerLow" "8"
      Option "FingerHigh" "10"
      Option "VertScrollDelta" "-20"
      Option "HorizScrollDelta" "-20"
EndSection

 

 

 

 

 

 

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