Decklink not outputting 2160p29.97 via Blackmagic UltraStudio 4k Mini

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iamjamie

New Member
I am trying to use a Blackmagic UltraStudio 4k Mini with OBS. The UltraStudio is connected to my PC via a Thunderbolt 3 connection and connected to my ATEM switcher (via a VideoHub) using the two SDI outputs.

When I configure the Decklink extension to output 2160p29.97 no signal is sent out the SDI output (confirmed with a Decimator). However, any resolution below 2160 works fine (2k, 1080p, etc).

Any suggestions? Thank you!
 
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owmbo

New Member
Hey,

I have still the same problem with the Ultrastudio 4k mini. 2160p25 works, alls above not.

With other tools instead of obs, it works with 2160p60
 
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