I am using the ADV7612 on the receiver side, when I connect it to a device (through hdmi cable) using the ADV7510 I do not see any communication happening on the DDCA lines between the two devices. I have DDCB disabled on the receiver side and I am not using PORTB. I have verified that the ADV7510 can see the HPD by reading the HPD register within firmware.
Oddly enough, when I connect my ADV7612 receiver to a device using the ADV7511 transmitter, I can see the communication happening on the DDCA lines. Has anyone out there seen this problem before? What could be the possible reasons why communication does not happen when I connect the ADV7612 to the ADV7510?