What is the value of the ADV7123 PSAVE pin internal pull-up resistor and what is its tolerance (+/-30% or else)?
PSAVE Pull-Up Current typical value is 20 μA. Please refer Page3 at https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7123-EP.pdf
Please note "PSAVE pull-up current is just the current needed to guarantee the device comes out of power save mode. A 10K pull-up would work fine .
Could you please check the required Pullup/Pulldown resistor values in attached Design and Layout of a Video Graphics System for Reduced EMI (Rev. AN-333) at ADV7123 Datasheet and Product Info | Analog Devices