In this day and age, Toughbooks almost all fit into the category of "older". Which makes sense because Panasonic found something that worked and stayed with it. Historically, the biggest single thing that occurred with Panasonic Toughbooks, was installing fans when processor speed created more heat than heat sinks could handle. What I am getting at, is that when you are tweaking Toughbooks you need to look at older distros. Did I mention that I am talking Linux here and touchscreens in particular. Which brings us to libinput. libinput does not work right with CF-31. The cure is relatively simple.....two lines in terminal or if you prefer, right clicking in Synaptic Package Manager. From terminal. As this is a file deletion/addition sudo is necessary. Code: apt-get purge xserver-xorg-input-libinput apt-get install xserver-xorg-input-evdev Now you can calibrate and the cursor will use the whole screen. In defense of libinput, it does work extremely well with tablets like FZ-Q1. Basically anything that does multi-touch.