Locutus_ix Said:
"MacBook Pro does not recognize an audio output: I'm trying to output audio from my 2019 MacBook pro to a usb-c cable that connects on the other end to an XLR cable, which goes to a speaker system. When I plug in the cable, I check system preferences -> sound, and see that it will accept audio input using this cable, but does not recognize it as an audio output."
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What to Try:
A. Are these even Seen?:
How to check...
- Go to: Apple menu
- Select: About This Mac
- Click: System Report... Button
- Click: Audio
- Click: USB
If not, then there is no power to them. So, replace the batteries.
B. Try Safe Mode:
In Safe Mode, login items do not run, and corrupt system files(i.e. caches) are intentionally reset as a way to fix issues
- Boot: in to Safe Mode: [Hold Down: shift key upon boot].
- Log in: as same user
- Wait: 30 seconds
- Restart; your Mac
- Log in: as same user
See if this now works
C. Try Another User:
Create a new administrator user, and see if you get this error. If you do, then it is likely an issue of the macOS as a whole. If you do not get this issue, then is it likely an issue with the users your are using while reporting this.
D. Reset the SMC and your NVRAM:
Sometimes when changes are made to the system(i.e. uninstallations), system configurations (i.e. for Ports) become manipulated, technically. So, reset the SMC and NVRAM. Try performing each thrice. It may take sometime, being certain you have the time to perform these resets.