F20: Touchpad vertical scroll for Dell Latitude E5430

[Marco Guazzone]

Hello,

I've installed F20 x86_64 on my Dell Latitude E5430.

Unfortunately, it seems that the vertical scroll with the touchpad
(i.e., when you vertically scroll the page by moving up & down your
finger) doesn't work.
This includes both the single-finger and the double-finger vertical scroll

Any idea on how to get it working?

Thank you for your time!

-- Marco