AnsweredAssumed Answered

EDID with 50Hz

Question asked by donadona999s on Jan 25, 2016
Latest reply on Jan 31, 2016 by donadona999s

Hi !

 

I have some question about EDID.

..maybe this question shouldn't be posted here...

 

One of my customers are using ADV7611 for HDMI Rx.

And they want to support,

480p,720p,1080p,576p

And 576p@50Hz is only they want to support 50Hz.

 

And at the HDMI test (Test ID 8-18), there was one warning.

CDF; Sink_50Hz = No

          Sink_HDTV = Yes

Warning -> CDF field Sink_50Hz was not set to Y but value exists in EDID

8-18.JPG

We think this happen because EDID have 50Hz

 

 

 

After that we put Sink_50Hz to yes

And at the HDMI test (Test ID 8-18), there was one fail.

CDF; Sink_50Hz = yes

          Sink_HDTV = Yes

Warning -> CDF fields Sink_50Hz and Sink_HDTV was set to Y but does not exist in EDID.

8-18.JPG

We think this happen because EDID don't have HDTV 50Hz


And my question is this

1) Is our understanding is correct why the WARNING and FAIL happen as I attached above?

2) If the WARNING appear like this,  will the compliance test fail or not?

3) To solve this problem, our customer are thinking to plus 720p50 to EDID.

     Is this correct approach to solve this problem?

     => I think they don't want to support 720@50 so this is wrong a way.

     Or should we leave this warning?


Please give your advise.


Best regards.

Kawa


Outcomes