<< Solved >> Catalina made my USB audio interface buggy (Apogee Quartet)

[carbonimax]

Hi. Did you find a solution?

 

[carbonimax]

Block "Apple16X50ACPI" and "Apple16X50Serial" in OpenCore Kernel section resolve my issue

 

[djmartain]

Since I have a similar problem, could you elaborate a bit more on how to do that in OpenCore? Thanks!

 

[carbonimax]

You have to disable AppleGFXHDA too.

 

[kinkmoliere]

Thanks for this thread! Had the same issue using an old Boss multieffect pedal as an interface so just chalked it up to older hardware. Got a brand new Rode ai-1 audio interface today and encountered the same problem. Disabled iGPU and serial ports in bios and all working perfectly. Don't need either of those so I don't really care which one caused it.

 

[carbonimax]

I don't have serial ports setting in BIOS

 

[Suloo]

I don't have serial ports setting in BIOS

maybe you have Super I/O setting. That's giving you the option to de/activate serial port. It did help here as well, with a Fireface 400.

 

[jorge.neri]

I had the same problem. I tried so many ways to fix it. But it did not work. One day,I turned the serial ports off from the bios. And it worked.

My friend, you just saved my life!
(As long as I produce music for living)

Disabled my serial port and voila!

How did u discovered it?
my goodness!