Ubuntu – How to restore triple tap to emulate the middle click

To fix the middle click you can use the following command:

xinput set-int-prop NN 266 8 2 3 0 0 1 2 3

Where NN is the id of the mousepad device, you can see it with the command xinput list. 266 is the id of the property "Synaptics Tap Action" you can see it with xinput list-props NN

You have to run this command every time you boot/login/wake.

To make it permanent you can put this command to the end of your .profile file in your home folder. (You can also try to put it in /etc/init.d/rc.local, but in my case it didn't work.)

To fix the middle click you can use the following command:

xinput set-int-prop NN 266 8 2 3 0 0 1 2 3

Where NN is the id of the mousepad device, you can see it with the command xinput list. 266 is the id of the property "Synaptics Tap Action" you can see it with xinput list-props NN. Example:

xinput set-prop "ETPS/2 Elantech Touchpad" "Synaptics Tap Action" 8, 9, 0, 0, 1, 2, 3

You have to run that command after each resume. To preserve your synaptics configuration after resume, you can follow this steps (from wiki.archlinux.org):

Gnome settings daemon may override existing settings (for example ones set in xorg.conf.d) for which there is no equivalent in any of the graphical configuration utilities. It is possible to stop gnome from touching mouse settings at all:

1. Run dconf-editor
2. Edit /org/gnome/settings-daemon/plugins/mouse/
3. Uncheck the active setting 

It will now respect your system's existing synaptics configuration.

It worked for me on Ubuntu 11.10 AND now I have:

Two-finger scrolling.
Middle Click with two fingers tap.
Right Click (tap at bottom right of scroll area).