0

I have Ubuntu 20.04 on an Intel NUC NUC11PAHi5, and can't get HDMI audio output to work. I did notice if I suspend and resume, 2 channel HDMI audio will work, until I reboot, but not 5.1 channel HDMI audio. Is there any instructions to get audio working properly?

I did fix the aux jack that was also not working by following this,Install Realtek Audio drivers in Ubuntu 20.04 (Intel Nuc nuc10i7fnh)

Billy
  • 1

1 Answers1

0

I have the same NUC and was able to get 5.1 working in 22.04. I ended up using a USB-C to HDMI cable but I still needed to suspend and resume, sometimes several times. I had issues with channels being swapped too (e.g., center channel playing in front right) which fixed itself through suspend and resume.

Unfortunately, it doesn't seem like there's a proper fix (at least I haven't found one) and pipewire in 22.10 isn't any better. In fact, I can't even get 5.1 to work at all, and it still takes suspend and resume to get 2.0 to work.

  • I found this https://www.intel.com/content/www/us/en/support/articles/000030985/intel-nuc.html but it's quite old and I got error message when I tried it in the terminal, I wonder if there is an updated version? – Billy Jan 08 '23 at 16:14
  • I've seen that doc too and had the same result. I haven't been able to find anything newer. There's this forum post with users experiencing the same, or similiar, with no luck too. –  Jan 08 '23 at 19:05
  • Well that post was depressing to read ;/ – Billy Jan 09 '23 at 01:25
  • Wait, I'm a bit confused, you said 5.1 works with USB-C to HDMI after a few times suspending. Once it works does it permanently stay until reboot? But then you also said you can't get 5.1 to work at all? – Billy Jan 09 '23 at 15:52
  • No, it does not persist between reboots. I was able to get 5.1 to work in 22.04, not 22.10. Also, when using something like VLC, it would cause 5.1 to stop working sometimes due to audio codec changes. –  Jan 09 '23 at 17:09
  • One thing you can try in /etc/pulse/default.pa is commenting out load-module module-suspend-on-idle. I think that helped me with the channels reverting back when I left the computer idle when I did get 5.1 working. –  Jan 09 '23 at 17:32