Hi, I have a DELL laptop with an ALPS touchpad/stick (the joystick in the middle of the keyboard) pointer device combination. Unfortunately, the stick is kind of broken and sends the cursor flying all over the place. Using the synaptics driver, I enabled (in hal configuration)
Option "DisableGuestMouse" "1"
yet the stick keeps on functioning.
As a workaround I was deleting the /dev/input/event7 file and restarting X. Unfortunately, the stick takes hardware priority : if it's moving the pointer, the touchpad gets disabled, so I ended up with a non-moving pointer and a disabled touchpad...
Using xorg-server-1.6 with HAL iput device detection, synaptics-1.1.0 under Archlinux.