I have a 1080P TV (Westinghouse), Sony Receiver (1080P), and a Sony upscaling DVD (1080P). I bought two cables to close the triangle (HDMI from the DVD to the Receiver, and another from the Receiver to the TV). I watched a movie perfectly on Sunday. Today I begin to watch another movie and I turn on the DVD and Receiver. To my surprise, I have to picture. I can hear through the surround sound just fine but no picture. I switched cables around, changed settings, and called Sony Tech. Nothing worked! Their response was that my cables are bad because I can use the regular cables and get picture. Now is this possible for HDMI cables (brand new) stop working. Honestly, two HDMI cables is a little over $100 bucks and they go bad after 1 week. Help!!!!
It is very unlikely that the cables have gone bad. I have personally drilled a hole straight through one once and it still worked beautifully (obviously, I replaced it anyway). The more likely culprit is that the HDMI port on either the DVD player or one of the two you are using on the receiver has gone bad. Most likely it is on the DVD player due to the fact that the HDMI port on most DVD players are so flimsy and a slight tweak of the connected HDMI cable can damage the port. I've seen this one too many times. Another possibility is that the HDMI assignments on the receiver somehow changed. This is highly unlikely though, but still possible. You would have to enter into the setup menu and reassign the DVD HDMI input and make sure that HDMI monitor out is enabled. My guess though is that the DVD player needs to be swapped.
You should check to see what version HDMI cables you have 1.3 should be available soon but get 1.2. Yes it is possible due to there not being a good quality control on the cables being made until this latest version (1.3). Also try to run the cables straight to the tv and not the receiver. Receivers can sometimes cause communication problems and devices to lose there handshake with devices over hdmi.
