I have a Mitsubishi WD-65733 TV and in April I bought a Yamaha AV receiver (RX-V667), and a motorola DCH6416 cablebox through time warner. I made all connections using HDMI cables.
I connected the cablebox to the receiver's HDMI 1 port, and the DVD Player to receiver's HDMI 2 port.
I also connected the receiver's "HDMI out" to the TV's HDMI 1 port.
Everything has been working great since April, but a couple of days ago I turned everything on and had audio from TV through receiver but no video. I unplugged the power to the receiver, unhooked all the HDMI connections and proceeded to reconnect them. I then plugged the power to the receiver again, turned everything on and I still have sound, but no video. I tried switching HDMI cables but no luck. Now, I'm getting a message on the TV that reads "HDMI switching through AV receiver is not supported. Please connect to the TV Digital Out". I never got this message before. I can still hear everything but not see it (no video). I also did one more thing, I connected the cablebox and DVD player straight to the TV using HDMI cables (with no connections to the receiver at all) and I was able to get an audio and video signal from the cablebox and DVD player, which tells me that the problem might be with the TV's ability to get the video signal from the AV receiver through HDMI. But why did this setup work just fine since April and it now just decided to output the message described above? Any suggestions?