Hop, found out what it was, I was indeed using HD-SDI ouput and INPUT on the monitor, but somewhere in the blackmagic panel, downconverting was enabled. And the HD-SDI input from the BVM monitor doesn’t recognize SD-SDI.
Turned downconversion off and it fired up.
Thanks for your help,
Jean-Luc
Jean-Luc Gason
https://www.10bitlog.com