xorg :: mouse wheel

to get the mouse wheel working with xorg u have to add to your xorg.conf in Section:

Section "InputDevice"
   Identifier  "Mouse1"

the following code:

file: xorg.conf
   Option "Protocol"    "IMPS/2"
   Option "ZAxisMapping"   "4 5"
   Option   "Buttons"  "7"

Now restart xorg and your mouse wheel will be available.