Mouse sensitivity settings are missing from my Ubuntu
 

I'm on Ubuntu 16.04 LTS, and when I go into the mouse and touchpad settings I see the following (see attachment).

As you can see, I am missing the sensitivity controls. I'm aware you can change the settings using the terminal, but does anyone have any idea why I'm missing these? I really would like to set the sensitivity and acceleration using a slider bar.

Thank you.

Try this:

If that package is installed, install instead of it xserver-xorg-input-libinput, purge xserver-xorg-input-synaptics, and logout/reboot. Not sure if that helps with mouse settings, but it sure did help with missing touchpad settings. Reason for that is that newer versions of gnome moved from synaptics to libinput and dependencies still bring in synaptics. At least it was like that in my case.