Configuring the touchpad

To get the touchpad working, you will need to add this section to /etc/X11/xorg.conf

Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "HorizScrollDelta" "0"
Option "SHMConfig" "on"
EndSection

Then, also add this line to Section "ServerLayout":

Section "ServerLayout"
...
InputDevice "Synaptics Touchpad"
EndSection

Here is the full xorg.conf.

Note that many distros like debian and opensuse, will automatically add these sections to xorg.conf, however, you will still have to add Option "SHMConfig" "on" to be able to use the tools I describe below.

Further configuration

Synaptics touchpads have many features that can be fully customized with the use of libsynaptics and a gui front end. There are many gui frontends for libsynaptics. Personally I use KSynaptics, but there are also others like QSynaptics and gsynaptics. Use whatever you like. In debian, all three can be installed using apt. Package names are ksynaptics, qsynaptics and gsynaptics.


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