I tried to do a dual monitor setup on ubuntu 16.04, the monitor connected to the graphics card worked, but the motherboard one didn't. By the way, it works perfectly on windows, and when I shutdown, the monitor connected to the motherboard displays the ubuntu logo, just like the other one, can someone help me?
Motherboard: GIGABYTE GA-B150M-D3H Graphics card: AMD R7 260x
thanks anyway xD