I am using ADV7604 and inputting the following resolution over DVI input.
Horizontal active 1024
Vertical active 2048
refresh 56.56 Hz
clk 128.00 MHz
hfront porch 32
vfront porch 26
hback porch 16
vback porch 3
hsync width 16
vsync width 3
ADV7604 doesn't lock to the resolution and I see CP Map, Address 0xB1,  (CH1_STDI_DVALID Standard Identification Data Valid for channel 1 Read Back) to toggle between 0 and 1.
Any ideas if there are any registers that need to be programmed?
Are there any limitations on min or max pixels per line, or no. of lines in ADV7604 that we need to look out for?
I have a board with ADV7612 and when I feed it with the same source and resolution, it works just fine. I have tried this with 3 different sources and always see the same issue.