Disabling the touchpad on Ubuntu on a Dell XPS12

One of my most loved features of some Touchpad drivers are “Disable when another pointing device is connected”. I have been trying for a while to get the same thing running on my XPS, as the touchpad is so big and the keyboard so small, it is almost always an annoyance when you accidentally touch it. Well, today I found a quick solution, albeit a manual one. I have tried GPointing Device Settings, Touchpad Indicator and more, with no success. The configuration tool in Ubuntu only lets me do some tweaks to speeds etc, but not disable the device. Recently it has annoyed me so much that I went the terminal route and wanted to disable it manually with X11. Hit read more if you want the commands.

Ubuntu 14.04

Been a while since I updated here, but I have not had the time to play around with my XPS to really come with some feedback. But once 14.04 I immediately updated and have been running it for a while. One thing I only recently noticed is that now the touch screen support is much much better. It now supports drag to scroll, like you do on a mobile device, which really saves you time. I have not really played too much around with the touch screen to tell of any other improvements (most importantly the freezing issues if you use it too much).