- Posts: 4
- Joined: Sun Jan 21, 2018 7:59 pm
Just spent months debugging something similar with a client and solved it minutes ago. So here's a suggestion: Are you sure the card is plugged into a port that is receiving enough PCIe lanes?
If you're on Windows:
Go to Device Manager. Right-Click on your DeckLink 4K Pro card. Click Properties... Click Details tab. Choose the Property you want to look at in this tab is "PCI current link width". If it's not 8, you're not getting enough PCIe lanes to keep up with 4K content.