We are using the ADV7623-P in an HDMI switch.
Some sources transmit HDCP encrypted even though it is not needed.
An example could be the new MacBook Pro's. Using thunerbolt to HDMI converter. If the sink EDID contains information that sink is HDCP compliant, then MBP will stream HDCP encrypted, even if it is just streaming it's desktop.
When we then put our ADV7623-P based switch in between the MBP and HDCP compliant sink, then MBP sends a HDCP encrypted video stream, which then never leaves our switch and sink displays a black screen.
We are using the ADV software driver and have the 7623 evalboard.
Is there some way we can tell the MBP that there is a non-HDCP compliant switch in between it and the sink? Or some other smart way to get around this mechanism?