HDMI to SDI problem

Here's my setup:

PC (output resolution 1280x800) ---> Kramer VP-729 switcher scaler (connected to VGA input, output resolution the same as PC) ---> Atlona AT-HD550 up/down converter/scaler (HDMI in/out, output resolution 1080p) ---> HDMI-SDI mini converter (processor off) ---> Decklink Duo

Getting no signal - black screen. Thoughts? HDCP issue?

Thanks in advance.

[Albert Chu]

Hello,

It looks like you have a fair amount of conversions there in that workflow. For a sanity check, you may want to test the HDMI to SDI Mini Converter as well as the DeckLink Duo on its own, just to validate that each BMD device is working on its own.

If possible, test a SDI source (signal generator, camera, deck, etc.) directly to the DeckLink, just to make sure that this is not a DeckLink issue.

Also see if you have access to a camera with HDMI out you can test with, directly to the HDMI to SDI MC just to verify that the converter is working.

You can then backtrack and add more hardware into the equation until you find out where the breakdown is happening.

Should you find that the issue is with the converter or DeckLink, please give us a call or email us from our support page and we can get you set up with an RMA.

And certainly not HDCP issue since VGA connection does not support HDCP!

[Joshua Helling]

And certainly not HDCP issue since VGA connection does not support HDCP!

True, but multiple conversions like that tend to make the signals borderline illegal and can cause it's own havok.

I would definitely simplify backwards until the problem is located.

Hi @marsound, were you able to solve your signal problem? Reason I ask is because I'm looking at setting up the same config as you did. But the primary objective is to output the Powerpoint presentation from a laptop which has VGA to SDI (to one of the ATEM 2 M/E's SDI inputs). Would appreciate if you could tell me how you were able to go around your problem. Thanks.

What has worked for me in the past (and hopefully will work again as soon as 3.4 is released - with 60Hz support re-introduced) is the Atlona VGA->HDMI scaler -> BMD HDMI -> SDI converter. Not sure about that Kramer thing... and what that does. You could always place simpler splitter at the laptop end and bypass that thing completely.