I am having a hard time configuring my notebook's touchpad.

The touchpad already works. It successfully responds to one-finger tap, two-finger tap and two-finger vertical scrolling.

What I want to accomplish:

1. change two-finger tap action from right-mouse click to middle-mouse click
2. add three-finger tap functionality to yield right-mouse click action (i have checked that the three-finger tap is supported by my laptop's touchpad since it works on Windows)

I read on a forum to use this as a guide.

I have successfully accomplished point 1 with synclient TapButton2=2. However, I have to do it everytime I log in. I have tried to put that command on /etc/rc.local but the computer always boots and logins with the default configuration.

Regarding point 2, I have tried synclient TapButton3=3 but it doesn't do anything when I three-finger tap the touchpad.

I am running Ubuntu 11.10 on an Asus N82JV.

/etc/X11/xorg.conf:

nuno@mozart:~$ cat /etc/X11/xorg.conf  Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"        MatchDevicePath "/dev/input/event*"             Option "TapButton1" "1"             Option "TapButton2" "2"             Option "TapButton3" "3" EndSection

/usr/share/X11/xorg.conf.d/50-synaptics.conf:

nuno@mozart:~$ cat /usr/share/X11/xorg.conf.d/50-synaptics.conf
# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
            Option "TapButton1" "1"
            Option "TapButton2" "2"
            Option "TapButton3" "3"
EndSection

xinput list:

nuno@mozart:~$ xinput list
? Virtual core pointer                      id=2    [master pointer  (3)]
?   ? Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
?   ? Microsoft Microsoft® Nano Transceiver v2.0    id=12   [slave  pointer  (2)]
?   ? Microsoft Microsoft® Nano Transceiver v2.0    id=13   [slave  pointer  (2)]
?   ? ETPS/2 Elantech Touchpad                  id=16   [slave  pointer  (2)]
? Virtual core keyboard                     id=3    [master keyboard (2)]
    ? Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ? Power Button                              id=6    [slave  keyboard (3)]
    ? Video Bus                                 id=7    [slave  keyboard (3)]
    ? Video Bus                                 id=8    [slave  keyboard (3)]
    ? Sleep Button                              id=9    [slave  keyboard (3)]
    ? USB2.0 2.0M UVC WebCam                    id=10   [slave  keyboard (3)]
    ? Microsoft Microsoft® Nano Transceiver v2.0    id=11   [slave  keyboard (3)]
    ? Asus Laptop extra buttons                 id=14   [slave  keyboard (3)]
    ? AT Translated Set 2 keyboard              id=15   [slave  keyboard (3)]