I recently made the switch from Windows to Kubuntu 18.10 and struggle with setting up my HP Spectre X360 Synaptics Touchpad. I changed the settings in /etc/X11/xorg.conf and /usr/share/X11/xorg.conf in the 40-libinput.conf to:
Section "InputClass"
Identifier "libinput touchpad catchall"
MatchIsTouchpad "on"
MatchDevicePath "/dev/input/event*"
Driver "libinput"
Option "Tapping" "True"
EndSection
but after rebootint xinput list-props 15
shows the parameter 'libinput Tapping Enabled' still as 0 and therefore Tapping doesn't work. If i change the behaviour using 'xinput set' temporarily it works just fine, so the touchpad appearantly supports it.
Thank you.