I'm having trouble configuring the ADV7604 for a second VGA input.
The first VGA input using:
VS_IN1, HS_IN1, AIN8=R, AIN7=G, AIN9=B, SOG=SYNC3
Setting AFE 02 to b'010' works fine.
The second VGA input using:
TRI8/VS_IN2, TRI7/HS_IN2, AIN5=R, AIN4=G, AIN6=B, SOG=SYNC2
Setting AFE 02 to b'001' is not enough.
It looks as if the video is being clamped randomly throughtout.
A second VGA with separate H&V syncs is not exactly documented.
Nor is the usage of HS_IN2 and VS_IN2...
What other I2C settings should I use to get my second VGA to work?