![]() Open Terminal to enable SIP: At the prompt enter this command: csrutil enableĩ. After deleting the extensions, I rebooted in Recovery Mode (command-r)Ĩ. Sudo rm -rf /Library/StagedExtensions/Library/Extensions/BlackmagicUsbIO.kextħ. Sudo rm -rf /Library/StagedExtensions/Library/Extensions/BlackmagicIO.kext Sudo rm -rf /Library/StagedExtensions/Library/Extensions/Blackmagic_Multibridge_Driver.kext In my case, the commands looked like this for the three extensions: Once you reboot, open Terminal and force delete the kernal extensions. You will get a message that SIP has been disabled.Ħ. Open Terminal to disable SIP: At the prompt enter this command: csrutil disableĤ. Uninstall Video Desktop using the uninstall program.ģ. Once I did all of this and then installed 12.0b1, it WORKED! Desktop Video recognizes the recorder and the picture displays correctly in OBS, using either SDI of HDMI.ġ. ![]() To do that, you have to boot into recovery mode, disable SIP, force delete the kernal extensions, then reenable SIP. So, I thought about getting rid of those. Then I noticed that the uninstall left 3 kernal extensions on my system: I completely uninstalled several times and reinstalled, but it was still the same. ![]() I tried installing 12.0b1 and got the same thing. The recorder was recognized, but all I saw was a black screen in OBS. I experienced the same issue as everyone else. I had Desktop Video 11.7 installed on Catalina and then upgraded to Big Sur. MY SOLUTION - UltraStudio Recorder 3G and Big Sur ![]()
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