Please see if downgrading to this -evdev package restores the scrolling:
https://launchpad.net/ubuntu/precise/+source/xserver-xorg-input-evdev/1:2.6.99.901-1ubuntu2
If it does, the regression could be due to 100-evdev-force-x-y-axes.patch.
Please see if downgrading to this -evdev package restores the scrolling:
https:/ /launchpad. net/ubuntu/ precise/ +source/ xserver- xorg-input- evdev/1: 2.6.99. 901-1ubuntu2
If it does, the regression could be due to 100-evdev- force-x- y-axes. patch.