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ADV7611 output no image when receive DVD video

Question asked by KevinZhou on Mar 19, 2013
Latest reply on Jan 13, 2016 by Anil@Ren

               ADV7611 work well when receive PC graphic video.

              But when it turn to decode the DVD video,I found that it didn't output the right image, it output black image instead.

             

               At that time,ADV7611 can detect TMDS clock and not in free run mode, also detect HDMI mode.

                From HDMI block registers,I know these params of DVD video is below:

               Active resolution           1280x720@59Hz

               Total resolution            1650x750@59Hz

               Hsync Pluse Width 40

               Hsync Front Porch 110

               Hsync Back Porch 220

         

               all of the measurements seems correct,but why it outputs black image?

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