I use Audirvana on a 2020 Mac Mini with a Melco as library and renderer into a Devialet 220 Expert Pro CI.
I tried the Mac (USB< >USB) into the Devialet last night and was pleasantly surprised. I decided to try the Direct Mode hack - unaware it wasn’t going to worK because of the latest Catalina update I applied last week. Couldn’t get Direct Mode to work - no surprise.
Decide to reinstall the original IOAudioFamily.kext file - this is where the problems start.
With all security (T2, Gatekeeper and SIP switched off) I can still connect a USB DAC (tried both a TEAC ampDAC and my Devialte - both work). Reinstate the security and NO USB DAC is seen in the sound preferences or by Audirvana onlt network connections are available.
I would like to listen some more to the Mac to Devialet USB connection. Question. How to restore it? My original KEXT file only works with no security. Should I reinstall Catalina from the recovery partition of the Mac Mini? As it seems direct mode is never going work for me now should I just update to Big Sur? Anyone else been in this situation?
The Mac Mini is only running Audirvana and absolutely nothing else.