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ATEM Mini Pro + HDMI Splitter + Long Cables = Black screen

PostPosted: Thu May 11, 2023 3:45 am
by paulofabiano
Hey, guys!

I just bought a brand new ATEM Mini Pro and I am trying to validate my setup before I got the cameras but this is not working. Here's what happening.

I am using a 20m optical HDMI cable from the HDMI output until a HDMI splitter. From this splitter, I am using two 10m optical HDMI cables to split the multiview imagem between two TVs.

But I got black screen.

So I made some tests:

1) Direct connect to the TVs: OK
2) Replaced ATEM by a poor and old HDMI converter using short regular HDMI cables: OK
3) Same from above but with the long cables: NO
4) Tried all video output settings from ATEM software: 1080 60, 30, etc: NO

So, after researching I had some ideas:

1) Splitter not supporting HDCP?
2) Splitter not supporting ATEM output frame rate?
3) TVs not supporting ATEM and/or splitter frame rate?

Do you guys have any idea?
This is the splitter I am using: B07RLSQNLL (Amazon Code)

Thanks for any help