Synaptics Touchpad - cursor moves around when just 'tapped' after Ubuntu 12.04 upgrade
After upgrading to version 12.04 LTS I experience some problems with my touchpad. Everytime I tap on the touch the cursor is moving around (for example if I want to close a window, I click on "x" button from touchpad, the cursor is moving and not always hit the "x" button). Touchpad left click, right click is working well, but tap... Did u guys experience the same problem? Is there something related to sensitivity? how to fix it?
Thanks
EDIT: Need help !!! It is really annoying
Solution 1:
It seem to be just a synaptics driver configuration, I solved by adjusting the FingerLow and FingerHigh values with sinclient. See your current configuration with synclient, here is my console output
$ synclient | grep FingerHigh
FingerHigh = 30
$ synclient | grep FingerLow
FingerLow = 25
I change the FingerLow value to 35, and FingerHigh value tu 40 and it works better! Try:
$ synclient FingerHigh=40
$ synclient FingerLow=35
The values were determined experimentally. To make the configuration permanent I created the file /etc/X11/xorg.conf with the following content
Section "InputClass"
Identifier "touchpad"
Driver "synaptics"
MatchIsTouchpad "on"
Option "FingerHigh" "40"
Option "FingerLow" "35"
EndSection
Regards!
Solution 2:
Same problem here with my Tecra R840 with Alps touchpad. It's definitely a regression in 12.04. It can slightly be diminished by changing the values of HorizHysteresis and VertHysteresis via synclient (see synaptics manpage). But the problem still exists.
And yes, it really is very annoying and the reason why I don't use this machine with Ubuntu.