Friday, May 22, 2009

Macbook Pro Touchpad: Synaptics Configuration in xorg.conf

I was trying to use touchpad on Macbook Pro (4,1) in Debian 5.0 (Lenny).
By default, it does not have tapping support, and multitouch support.
Even touchpad driver was also unavailable. Therefore, I had compiled
Linux kernel added support for Apple Macbook Touchpad Driver.
Then after booting in new kernel with NVIDIA 8600 GT driver, I have
modified the xorg.conf with following lines.

## In case, you want to revert
$ sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bk
$ sudo vi /etc/X11/xorg.conf

Section "ServerLayout"
Identifier "Layout0"
# Add Synaptics Touchpad as mouse
InputDevice "Synaptics Touchpad" "SendCoreEvents" #"CorePointer"
InputDevice "Mouse0" "CorePointer"


Section "Module"
# Load synaptics driver for Macbook Pro Touchpad
Load "synaptics"


Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/mouse0"
Option "Protocol" "auto-dev"
# not using edge scrolling
Option "HorizEdgeScroll" "0"
Option "VertEdgeScroll" "0"

# use two finger scrolling
Option "VertTwoFingerScroll" "1"
Option "HorizTwoFingerScroll" "1" # set to 0 if you don't want horizontal scrolling

# scroll speed, lower is faster
Option "HorizScrollDelta" "15"
Option "VertScrollDelta" "15"

# minimum pressure motion factor
Option "PressureMotionMinZ" "10"

# touch and untouch thresholds, higher numbers if you like to push hard
Option "FingerLow" "20"
Option "FingerHigh" "60" # change to 30 or 40 if you like

# FingerPress (Integer) : Above which counts as press
Option "FingerPress" "130"

# borders based on output from synclient
Option "LeftEdge" "70"
Option "RightEdge" "1120"
Option "TopEdge" "50"
Option "BottomEdge" "750"

# speeds, smaller number for a slower mouse
Option "MinSpeed" "0.8" # 0.5 is very slow, 1.5 is very fast
Option "MaxSpeed" "1.3" # up to 1.5 works ok
Option "AccelFactor" "0.10"

# tap times, change to suit your tapping habits
Option "MaxTapMove" "100"
Option "MaxTapTime" "100"
Option "MaxDoubleTapTime" "200"

# don't change these or two finger tap stops working
Option "TapButton2" "3"
Option "TapButton3" "2"

# must be commented out or normal tapping wont work
#Option "TapButton1" "0"

# Right Top Corner Button as right click
Option "RTCornerButton" "2"
Option "RBCornerButton" "0"

# Left Top Corner Button as middle click
Option "LTCornerButton" "3"
Option "LBCornerButton" "0"

# Palm Detection: Useful while typing
Option "PalmDetect" "on"
Option "PalmMinWidth" "10"
Option "PalmMinZ" "200"

# needed for disabled while typing fix
Option "SHMConfig" "on"

No comments: