wie use the ADV7441A as a frontend in our lcd monitor with video, rgb and hdmi. Our customer want to switch automatical to video if a valid signal is connected. I have the problem that the status register 0x10, 0x12, 0x13 (user map) of the SDP don't work if I switch the device to rgb graphics with PRIM_MODE = 0x02. Is there a possibility to recognize a connected video (fbas or yc) if the PRIM_MODE is set to HDMI (0x06) or RGB graphics (0x02)?
Thank you for you help.