In Unity a design decision has been made that three and four finger
gestures are reserved for the shell. For example, any time you put three
touches down on a multitouch trackpad you can start draging the window
around (assuming it's not full screen). The only way to implement this
behavior is to mask out the three-touch-tap behavior that X synaptics
supports.

I'm sorry to say that they only reason three touch tapping works in
unity 2D is because it doesn't yet implement the window moving gesture.

There's no reason this can't be made configurable. I can envision an
option turns off specific gestures in Unity. If you disable the window
move gesture you'll get three touch tap to paste functionality back. If
someone in the community wants to offer a patch to do this we would be
happy to review it.

** Changed in: mactel-support
       Status: New => Invalid

** Changed in: unity
       Status: Invalid => Opinion

** Changed in: utouch
       Status: Confirmed => Invalid

** Changed in: unity (Ubuntu)
       Status: Invalid => Opinion

** Changed in: xserver-xorg-input-synaptics (Ubuntu)
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/754000

Title:
  3 finger touch interferes with 3 finger click (middle click)

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