Mint is designed to be used with a mouse, but don't dismiss the keyboard out of hand.

Linux Mint is working on a redesigned screensaver and lock screen for the Cinnamon desktop. Based on our first look, it's a solid improvement. If the word ...

Also tried commenting out the tablet section as well. Neither impacted the touchscreen - it still worked. Next, I tried adding Option "Ignore" "on" to the last line of the touch screen entry, before ...