Connecting a computer to UMC 200

[jeremyjg]

I am trying to loop a Mac Mini into my rig, to use as a streaming option. I know that the computer is in good working order, but when I attempt to connect it to the 200, the prompt reads "mode not supported". Any help would be appreciated. I have HDMI outs 3 or 4 available. 

[Loop 7]

Which Mac Mini model do you have and which OS version?

[jeremyjg]

it's a 2012 mini w the newest OS