Blackmagic UltraStudio Mini 4K not recognized

Hi,

I am currently running Mac OSX Sonoma, and the Desktop Video Setup App version 12.4.2.
Till now I used the Blackmagic Mini Monitor Thunderbolt 2 (connected with Thunderbolt 2 to 3 Adapter).
It worked flawless.
When I connect my new BlackMagic UltraStudio 4K Mini, the device is recognized in the System Profile,
but not in the Desktop Video SetUp app.
Any idea, why it is not recognized by the BlackMagic App?

Thank you.


Best,

Sascha

This forum has many topics and some solutions for this issue. Do a search for Desktop Video etc.

This came up in a previous thread:

1. Un-installed the driver software (if installed)
2. Restart
3. Re-install from the .dmg
4. During the installation process Open Security Settings and click "allow" or toggle the "on" switch at each prompt.
5. Restart
6. If the device isn't recognized when you launch the Blackmagic Desktop Video app, first do a quick system check.
7. Open Apple -> About this Mac -> More Info -> General -> System Report -> Hardware -> Thunderbolt and confirm that the UltraStudio Monitor 3G is showing up as connected. If it's not, call tech support because it might be a hardware issue. If it's connected go to the next step
8. Go to System Settings -> General -> Login Items & Extensions
9. Look for Blackmagic Design Desktop Video. If it's "on", toggle it "off" (input password), then back "on".
10. Scroll down to Extensions, look for "Driver Extensions", with the one showing "com.blackmagic-design.BlackmagicIO.DExt", click the (i) button to the right.
11. Toggle Blackmagic Desktop Video Driver Extension.app to "on"
12. You might get an "update" device message. This is GOOD. Hit update and let it run through. If you don't then just skip ahead. If you do, follow the instructions, part of which will be to unplug your device and reconnect.
13. Re-launch the Blackmagic Desktop Video app, it should show up correctly.
14. If you don't see the device try restarting one more time.

Thanks Marc. That was helpful. In case others have a similar situation, my steps were slightly different:
1. I didn't get the usual security warnings while installing
2. There was no "com.blackmagic-design.BlackmagicIO.DExt" listed

but toggling off and on the Blackmagic Design Desktop Video extension, turning on the Blackmagic camera extensions eventually popped up a message about needing to update the software on the UltraStudio. Once that was done, and I power cycled the UltraStudio, it showed up in desktop video.

Cheers.

Ok, thanks for the workaround . Will try that. But does it shows and works also in Oremiere or only in Resolve? Because my MiniMonitor3G now works as it should with resolve but doesn’t even show up in the list of premiere as possible video device… only as a possible output device? Very strange…