An adapter like that will have the exact same problems as DVI->VGA adapters: HDCP. The software will refuse to send the data to the port without an HDCP negotia

An adapter like that will have the exact same problems as DVI->VGA adapters: HDCP. The software will refuse to send the data to the port without an HDCP negotiation. And just like the VGA adapters, I'm sure it will be possible to make a "striper" that fakes the HDCP handshake, with all the associated legal problems.