I am running arch linux with gnome desktop on a Lenovo Thinpad X230. Some time ago gnome 3.20 was released and apparently the synaptics driver is not supported any more.
The only reason I ran into this was because “tap to click” was turned on all of sudden and it interfered with my typing.
Initially, I heeded the advice on the synaptics wiki page: “Synaptics is no longer supported under GNOME. Migrate to libinput.” but the libinput driver was intolerably slow on my system even though I cranked the touchpad speed up to the max.
Anyway, I went back to the synaptics driver and disabled the irritating “tap to click” behaviour by setting the following values in
Identifier "touchpad catchall"
Option "TapButton1" "0"
Option "TapButton2" "0"
Option "TapButton3" "0"
I hope this helps 🙂