Comment 5 for bug 1481784

BTW, here's my X config file:

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "Clickpad" "true"
        Option "ClickFinger2" "0" # no action when clicking with 2 fingers
        Option "ClickFinger3" "2" # middle click on 3-finger click
        Option "PalmDetect" "1"
        Option "TapButton2" "0" # no action when tapping with 2 fingers
        Option "TapAndDragGesture" "0" # no tap and drag
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
        #Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%" # those are on top of the touchpad
EndSection