Now that I've been over this area a few times I find it's the HDMI/HDCP or more succinct, Intel's HDMI chips that are not playing along. You'll have to swap out the receiver if firmware updates don't correct it.
I also am guessing you tried it with the normal 6 foot HDMI cables to rule out the cable issues. Again, this is not the fault of the projector or the receiver but the HDMI chips from Intel. Some of them are just picky and you see this on some units.
I am trying hard to tackle a what seemed to be simple problem if wiring my setup together. The setup:
-- Mac Mini (2011) with HDMI Output
-- Pioneer 921 K AV Receiver
-- Acer HD Projector (HDMI)
When I hook up my Mac Mini directly to the Projector with a 30 foot (10 meter) HDMI Cable everything is just fine. The picture is sharp and the colors brilliant.
However, when I send HDMI to the receiver (into the BD HDMI Input) then I get absolutely no HDMI output to the projector, it keeps saying "no signal".
Is there perhaps some magic combination of setup buttons that may help me resolve this problem?
thanks and br from Austria