Help No picture!!! Denon receiver to DVD Audio fine no picture Help

[Lefty10is]

replaced my old dvd now i have audio but no picture; cant figure this out!
hdmi is plugged in to the receiver from the tv; dvd plugged into the receiver audio works through the system, but no picture!!!

 

[Davemcc]

Which Denon? There is usually a button on the Denon remote that switches video input for whichever source you're on.