We have ADV7619 + ADV8005 on our custom platform. I am giving 1080P input from a standard player and up scaling to 4K resolution works fine. But when I try to feed 4K input, it gets detected&reported by VSP driver, but I do not see anything on screen. After few seconds, player falls back to 1080P resolution. I am overwriting EDID info from connected panel with 'DefaultEDID' (app_vsp.c) before passing it to RX. Anything do I need handle extra to enable 4K input in application/driver. Is there any debug information to see at what stage this fails?