No 5.1 surround on the M1 Mac Mini...
I've read through archives about this and I'm still stumped about this.
I bought a Mac Mini M1 about a month ago (Mac Mini M1 2020) to replace my fried Mid-2011 Mac Mini.
Both Minis use the following hook-up:
Mac Mini HDMI out to 65" LG HDTV
Optical Audio out on TV to Logitech Z906 Optical Audio in
The LG TV is set to output 5.1 surround.
The 2011 Mini had perfect 5.1 Surround Sound with this configuration. I confirmed this with a sound test to each speaker in my system.
The brand-new Mini only sees 2 audio channels. No matter what I do, nothing fixes this.
I am assuming that Apple changed something and the Mini no longer decodes the HDMI/Optical audio and downgrades it to 2-channel stereo.
The Z906's inputs are as follows:
2 optical
1 Digital Coaxial
1 set of sound card inputs (yellow/black/green)
I've tried:
- Switching out HDMI cables
- Switching out HDMI ports
- Playing with the LG TV's audio output
- Restarting the Mac just in case I was hitting this wall in error
- Playing with the MIDI app: the other digital audio options are greyed out
Does anyone know a workaround? I am assuming there's some sort of DAC which will do the job. I am also assuming that any sort of audio connection has to be a direct connection between the Mini and the Z906.
Looking at the Mini's back panel, however, the options seem to be limited. The HDMI is obviously being used to provide video to the TV and I have both USB A slots already used which leaves the 3.5mm headphone jack, and the two Thunderbolt ports.
Is there a DAC or conversion cable which would let the Mini detect the Z906?
And before someone attempts to move the goalposts, I must politely state that, yes, I have an AppleTV. Yes, I CAN use it to watch my media. No, I don't want to use the AppleTV in this case. I use my Mac Mini as my main home theater hub in my living room because the AppleTV is the media hub for my bedroom which runs off the Mac. This Mini also powers my Plex Server.
Please let me know. It's disappointing that Apple changed this.