IRIS QC only able to playback up to buffer duration with updated BlackMagic driver V15

Iris only supports up to version 12.3 for the BlackMagic driver. You must revert back the driver and firmware on the card.

Firstly, if you update to version 15, it also updates the firmware to match.

If you revert back to 12.3, the desktop app will not recognize the card until the firmware has also been reverted back to 12.3.

 

So to make sure this works, you need to do the following:

1. Uninstall the current latest version using "Add and Remove Programs". Allow it to reboot.

2. On restart, delete the folders and everything under "c:\program files\Blackmagic Design" AND c:\program files (x86)\Blackmagic Design".

3. Install "Desktop Video for Windows 12.3". Allow it to reboot.

4. On restart a popup window will ask you to allow "Desktop Video Software Update". Select Yes and continue. When it's finished, select "Shut Down".

5. Wait 30 seconds before restarting PC.

6. On restart, popup should not appear. Run "Desktop Video Setup" from the Start Menu and it should show the card in the UI. Change options as required.

7. Iris should run as normal as long as "Black Magic Design" appears in the SDI output options box.