This is an odd scenario. The only system i cannot get Ubuntu 16.04 to place nice on is a MacbookPro 8,2 version that is Intel/Ati hybrid graphics. Every other device i have throw it at has worked without issue. I have taken to installing my desktops from a Server install instead of a GUI install because it allows me to set up LVM right out of the bucked when i want it, or simply have no GUI until I choose one. but so far it has been kind of catch as catch can. what hardware are you trying to install on?