Touchpad scroll

My old laptop’s touchpad works but the scroll does not. I’ve been lazy to fix it, but finally peeked at Arch linux’ wiki. So, I just copied the example .conf file /usr/share/X11/xorg.conf.d/50-synaptics.conf to /etc/X11/xorg.conf.d and modified it according to the wiki example:

# Use "synclient -l" to see all available options
# Use "man synaptics" for details about what the options do
#
 Section "InputClass"
 Identifier "touchpad"
 Driver "synaptics"
 MatchIsTouchpad "on"
       Option "TapButton1" "1"
       Option "TapButton2" "2"
       Option "TapButton3" "3"
       Option "VertEdgeScroll" "on"
       Option "VertTwoFingerScroll" "on"
       Option "HorizEdgeScroll" "on"
       Option "HorizTwoFingerScroll" "on"
       Option "CircularScrolling" "on"
       Option "CircScrollTrigger" "2"
       Option "EmulateTwoFingerMinZ" "40"
       Option "EmulateTwoFingerMinW" "8"
       Option "CoastingSpeed" "0"
 EndSection

Restart the X server and it works.