Finally! NUC11 does the trick - I have hi-res audio over HDMI

Roon Software Discussion
1

I bought a NUC11PAHi7 and installed ROCK on to it and lo and behold, I have hi-res audio over HDMI into my Marantz AV10! However, there is something weird I’m curious about - there are 11 or so HDA Intel PCH HDMIs? I selected PCH HDMI 0 and I’m getting 2-channel upconverted and lossless music through it. Don’t judge my upsampling choices in the pic - just testing it out (albeit, it sounded awesome) - I’m just curious why there are so many HDMI outputs available?

Roon-HDMI2
Roon-HDMI21924×1411 421 KB

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I understand it, but not enough to explain it well. I will butcher this! :grin:

if you read up on IntelHDA audio or look up No sound from HDMI audio on NUC board the github and Linux pages show some code with the audio in such as this info on a nuc10

At any rate… they refer to different hardware addresses in intelHDA audio.

The numbers your seeing in the Roon output would directly relate to the device numbers.
PCH = platform controller hub
HDA = HighDefinionAudio
Note the multiple HDMI… one may be analog audio, one may be digital, one 5.1, another 7.1, if there are multiple HDMI outputs they are listed differently.

Below is not for the nuc11… it is for reference.

Here is an example:


**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC1150 Digital [ALC1150 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Did I butcher it enough? :face_with_peeking_eye:

Hopefully I didn’t make it worse and this helps you a little.

Sometimes I think I should just stick to plumbing. :wrench:

1 Like
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How is the performance on this NUC? Just ordered one I’m moving on from my Mac mini.

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It’s how the board reports them not uncommon. You use HDMI 0 ignore the rest.