no, i'm not confusing anything. not that I know of.
I was highlighting the HDMI-IN issues with the boards, I know its a pass through, I know its not os x specific, but if, like me, having the AIO double as a games console screen is important, it matters perhaps that it works.
also, I think perhaps you've misunderstood the problems I've mentioned. I am aware of getting the correct platform ID to match the outputs ports, i'm also aware of binary editing them to suit if they don't.
however, unless you know something more about this....you cannot influence which *display pipe* gets selected to output on the detected port, if you can, I really rather desperately want to know how!
see here for the specifics:
http://rr7blog.wordpress.com/2013/01/13/blank-display-when-hd-4000-loads/
as for the other boards, the ECS-G11 simply never detects a display, regardless of what output port configuration is chosen.