Comment # 2 on bug 904984 from Federico Vecchiarelli

Clicking on the option does change the value shown by gsettings however
scrolling remains, effective, at two finger scroll.

Settings after selecting two finger scroll:

gsettings list-recursively | grep -i scroll-method
org.gnome.settings-daemon.peripherals.touchpad scroll-method
'two-finger-scrolling'
org.gnome.settings-daemon.peripherals.touchpad scroll-method
'two-finger-scrolling'

Settings after de-selecting two finger scroll:
gsettings list-recursively | grep -i scroll-method
org.gnome.settings-daemon.peripherals.touchpad scroll-method 'edge-scrolling'
org.gnome.settings-daemon.peripherals.touchpad scroll-method 'edge-scrolling'

In effect, scrolling remains at two finger scroll.

Any ideas?

Thanks.