I'm running an i.mx6 solo with an AD ADV7610 HDMI decoder connected via a 16-bit bt.1120 connection to CSI0. In 720p and 1080p modes the video looks great. But, when I switch to 480p (640x480p60 in this case) I get strange dark color bands in the video (see attached).
I believe the ADV7610 is still outputting 16-bit YCrCb data, as the colors look OK except for the dark bands.
Any ideas as to whats causing this?