I tried Ubuntu on my c720 and had issues with the cursor. I think it might have been me brushing my hand against the trackpad which I believe the Chromebook os recognizes as accidental but Ubuntu did not.
Have you had this issue?
Have you had this issue?
Section "InputClass"
Identifier "touchpad catchall"
Driver "synaptics"
MatchIsTouchpad "on"
MatchDevicePath "/dev/input/event*"
Option "FingerLow" "5"
Option "FingerHigh" "10"
Option "VertScrollDelta" "-25"
Option "HorizScrollDelta" "-25"
Option "CoastingSpeed" "5"
Option "CoastingFriction" "20"
Option "TapButton1" "1"
Option "TapButton2" "3"
Option "TapButton3" "2"
EndSection
There's also a specialized Ubuntu-derivative called GalliumOS [1] that you might try. They try to work out all these configuration oddities before you get it loaded.