I know that. And my intent was to use a still test image. The problem is that I think HDCP will be asserted by the graphics card regardless. If so, without a cheater card you can't capture it. Do you have confirmation of any graphics card solution which only asserts HDCP on protected content that requires it?
I will get our HDMI analyzer and test my system here and see what it does.
Not that I know of w/o a modified frame buffer card.