As for the RXA_5V(5V detect) and RXA_HPA(Hot plug Assert) of your ADV7626,
Our customer brought the following question to me.
I just searched the answer on your datasheet but I could not find it.
When the power is not supplied to ADV7626,
after come on "5V detect", is the Hot-Plug asserted, correct?
Does the pin "HotPlugAssert" have the resister eg;1kohm in internal?