Hi disabuse
first you failed to mention which Linux distribution you are using ... which may affect driver info ..etc..
second
Try this modified Xorg file
___________________________________
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Synaptics"
Driver "synaptics"
Option "Device" "/dev/input/mice"
Option "Protocol" "auto-dev"
Option "Emulate3Buttons" "yes"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "intel"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
___________________________________
I am not sure about the intel driver exactly
try reading about it in this link
http://intellinuxgraphics.org/install.html
It is usually a case of trial and error ...
Good Luck