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Is there an official source of Realtek Audio Drivers, that can be installed on 20.04 (a NUC, if that matters)? And what are the installation instructions?

I have installed Ubuntu 20.04 on an Intel NUC nuc10i7fnh box, with no problem. I have updated the BIOS to the latest, and enabled "HD Audio". Everything is good, except I have been unable to get audio working. (The only output-source is "dummy", which is what I feel like).

I think it's the lack of Realtek drivers, and this is the only thing I've seen in questions, that I haven't yet tried. All of the official Realtek and Intel docs, seem to point to Windows drivers. After a lot of searching, I've found some Linux drivers:

Which are two years old, and I can't get to make correctly. (It does say it's only for a much older kernel).

One reason I'm looking for the drivers to install (or re-install), is based on Intel's docs at Troubleshooting Intel NUC, which, for

Front panel 3.5mm audio jack isn't working.

says to "re-install the drivers". Of course, it also says to "enable audio" in the BIOS - the only thing I found in the BIOS was "HD Audio", which was checked - maybe there's a setting missing.

More generally, can Ubuntu be installed on an Intel NUC, and audio configured to work at all? I've seen lots of recommendations for the Intel NUC as a good Linux-box - I can't believe everyone else would have missed audio being broken.

John C
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2 Answers2

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I finally made it work. Even if it's not DELL, the fix in this post on Intel community forum magically works!

add

options snd-hda-intel model=dell-headset-multi

to the file /etc/modprobe.d/alsa-base.conf

Then reboot. Works like a charm.

Zanna
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smrt28
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This is in response to dunbrokin's post. I have a NUC11PAHi5 (which I assume is the same as the NUC11PAHi7 except for CPU) running Ubuntu 21.04 and am able to get the HDMI audio working by locking the screen (using Super-L or Windows-L), wait a few seconds for the screen to go black, and then unlocking the screen.

The HDMI/Display Port - Built-in Audio output device will then appear in the audio settings. You'll need to do it every time you reboot.

It's not perfect, but it's a work-around until we work out why it doesn't appear automatically on reboot. Please let me know if you see similar behaviour with your NUC.

Interestingly when I boot-up with the Ubuntu 21.04 live USB, the HDMI audio works fine without needing to do the screen lock trick. I've also noticed that Ubuntu 20.04.3 and Fedora 34 have the same problem.

gonk23
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