Ran into this, actually a pretty simple fix...
Create a directory (/etc/X11/xorg.conf.d
Create 51-clickpad.conf and insert the following:
Section "InputClass"
Identifier "Default clickpad buttons"
MatchDriver "synaptics"
Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
#Next 3 items added just for the HP Mini to better control the clickpad
Option "LockedDrags" "1"
Option "BottomEdge" "4000"
Option "AreaBottomEdge" "4445"
EndSection
save the file, and restart lightdm
Don't forget to do this on the generic partition