This is a quick post about the proper way to set up the Oculus Rift DK2 on GNU/Linux, which might not be obvious for users not deeply familiar with the X window system.
(feel free to skip)
I remember discussing this a long time ago in the oculus forums, back when the linux version of the oculus SDK was doing absurdities such as relying on Xinerama to detect and use the oculus display. Setting up the rift display as an extension of the desktop, is wrought with peril and woe. Thankfully, the X window system is awesome, and used to deal with such diverse multi-display contraptions, back when burly men programmed computers made of pumps, grease, and steel… true story.