Decklink Duo 2 not working with 1080P50 output

General
1

Hi,

We configured CasparCG to output 1080P50 via a Decklink Duo 2 card but the output is corrupted. Our test monitor registers 1080i and the ouput is a black screen with a green rectangle. 1080P25 and 1080i50 both work as does 720P50.
I have also tried using a Blackmagic Ultrastudio HD and this also won’t output 1080P50.

Has anyone else had this. I can confirm the decklink is a duo 2 card is is capable of 3G SDI resolutions and Desktop Video is the latest version as I updated this as my first thought to solve the issue.

2

Problem Solved.

The Blackmagic decklink and Ultrastudio were set to SDI type B in settings (labelled normal). After setting all card outputs to SDI type A 1080P50 is now working with Caspar output.