I have a Dell Inspiron 6400 and I got touchpad + scroll working using this configuration.
Section "InputDevice" Identifier "Mouse0" Driver "synaptics" Option "CorePointer" Option "Device" "/dev/input/mice" Option "Protocol" "ImPS/2" Option "ZAxisMapping" "4 5" Option "Emulate3Buttons" "true" Option "SHMConfig" "true" EndSection
I have a Dell Inspiron 6400 and I got touchpad + scroll working using this configuration.
Section "InputDevice"
Identifier "Mouse0"
Driver "synaptics"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
Option "SHMConfig" "true"
EndSection