Fastest way to test what we have is a small adapter board that does the mirroring...
If we had an adapter board to a full size HDMI connector, people could use existing HDMI cables rather than having to buy ones with mini connectors.
This could take the form of a Mini C to an A
hmm these mini-c male with PCB look handy (for hacking not final solution)
I agree, but for example, here's a quick sampling of how it's done / not done on a few FPGA boards: