F20 KDE Synaptics tapping not working - SOLVED

[Frédéric Bron]

> In that tab, make sure the checkbox 'Enable tapping' is checked (and
> mine was, fwiw).  At the bottom of that tab there's a section labeled
> 'Buttons'.  You have to assign the buttons to particular taps. In F20
> KDE, the taps are all assigned NONE.  Once I went in and set 'One
> Finger' means 'Left Button', etc, it works just fine.

I have had the same issue for a very long time until I eventually
discovered the same thing! not very intuitive.

Frédéric