I just installed the xfree86-driver-synaptics package and now touchpad scrolling and many other features work as advertised! In order to enable both trackpoint and touchpad, the following configuration is necessary:
Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
+ InputDevice "Mouse0" "CorePointer"
+ InputDevice "Mouse1"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "InputDevice"
Driver "synaptics"
Identifier "Mouse0"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "LeftEdge" "1700"
Option "RightEdge" "5300"
Option "TopEdge" "1700"
Option "BottomEdge" "4200"
Option "FingerLow" "25"
Option "FingerHigh" "30"
Option "MaxTapTime" "180"
Option "MaxTapMove" "220"
Option "VertScrollDelta" "100"
Option "MinSpeed" "0.06"
Option "MaxSpeed" "0.12"
Option "AccelFactor" "0.0010"
Option "SHMConfig" "on"
# Option "Repeater" "/dev/ps2mouse"
EndSection
Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
+ Option "SendCoreEvents" "true"
Option "Protocol" "ThinkingMouse"
Option "Device" "/dev/gpmdata"
EndSection
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
+ InputDevice "Mouse0" "CorePointer"
+ InputDevice "Mouse1"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "InputDevice"
Driver "synaptics"
Identifier "Mouse0"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "LeftEdge" "1700"
Option "RightEdge" "5300"
Option "TopEdge" "1700"
Option "BottomEdge" "4200"
Option "FingerLow" "25"
Option "FingerHigh" "30"
Option "MaxTapTime" "180"
Option "MaxTapMove" "220"
Option "VertScrollDelta" "100"
Option "MinSpeed" "0.06"
Option "MaxSpeed" "0.12"
Option "AccelFactor" "0.0010"
Option "SHMConfig" "on"
# Option "Repeater" "/dev/ps2mouse"
EndSection
Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
+ Option "SendCoreEvents" "true"
Option "Protocol" "ThinkingMouse"
Option "Device" "/dev/gpmdata"
EndSection