Now I use a value of 300. This how my xorg.conf looks like:
Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SendCoreEvents" "true" Option "Device" "/dev/psaux" Option "Protocol" "auto-dev" Option "BottomEdge" "4300" Option "VertScrollDelta" "300" EndSection
I've also added BottomEdge because in this way the horizontal scrolling does only start when my finger is really at the bottom of the touchpad
Now I use a value of 300. This how my xorg.conf looks like:
Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "BottomEdge" "4300"
Option "VertScrollDelta" "300"
EndSection
I've also added BottomEdge because in this way the horizontal
scrolling does only start when my finger is really at the bottom of
the touchpad