Dell 5430 2in1 No audio after fresh install, "Dummy output"

Ubuntu Version:
Ubuntu 25.10 (Questing Quokka)

Desktop Environment (if applicable):
GNOME

Problem Description:
I fresh installed Ubuntu 25.10 to my converted chromebook and have no audio, it says dummy output.

Relevant System Information:
Dell 5430 Chromebook 2 in 1 with MrChromeBox firmware
16bg ram
I7
Intel corp Alder Lake PCH-P High Definition Audio Controller (rev 01)

What I’ve Tried:
Followed instructions here:
https://askubuntu.com/questions/1220493/18-04-audio-realtek-alc3254-fails-on-new-dell-g3-15-3590
https://askubuntu.com/questions/1218058/ubuntu-19-10-audio-driver-issue/1238287#1238287][1]
https://www.reddit.com/r/Ubuntu/comments/1hrfo65/ubuntu_2404_audio_stopped_working_dummy_output/

Before Posting:
I saw in here these two:

and this:

I have already downloaded 22.04.5 jellyfish which I have in an older 5420 with no audio issues but want to see if there is a solution instead of installing an older version.

Can you share the output of journalctl -b?

Yup
Just did it and uploaded it to the paste site:
https://pastebin.com/Kz51NuA7

Thanks :slight_smile:

Edit: IDK why the ubuntu paste was deleted so I added it to pastebin

You can always paste between three sets of backticks:
```
Which turns this
```

Into This

That way you can skip the pastebin. In fact, we’d prefer that.

1 Like

Doesn’t let me:

Oh, dang, it’s that big. Well, then pastebin it is!

Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: SOF firmware and/or topology file not found.
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: Supported default profiles
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: - ipc type 0 (Requested):
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware file: intel/sof/community/sof-adl.ri
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: Topology file: intel/sof-tplg/sof-adl-max98360a-cs42l42.tplg
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: Check if you have 'sof-firmware' package installed.
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: Optionally it can be manually downloaded from:
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: https://github.com/thesofproject/sof-bin/
Nov 12 00:45:53 Carlos-Ubuntu-5430 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: error: sof_probe_work failed err: -2

Is firmware-sof-signed installed there?

Just double-checked, yes, it is installed:

IDK if it makes any difference but if I connect my Arctis Pro via bluetooth, I do get audio, don’t have a 3.5mm to check physically.

To be fair, I was speaking as a moderator, not that I have any insight to your problem.

1 Like

It doesn’t. Different and independent “sub-systems”. The sound card/chip, the sound chip in the graphics card/chip/embedded in the CPU layer (HDMI, DP,…), USB audio device and Bluetooth audio are all different and independent. That one works is irrelevant for troubleshooting the others.

1 Like

This seems similar to Bug #2131090 “Regression in 25.10: No audio devices in PipeWire/...” : Bugs : alsa-ucm-conf package : Ubuntu

Please try installing the updated UCM package from Comment #6 : Bug #2130761 : Bugs : linux package : Ubuntu

That’s currently going through an SRU process to be released to Questing, but hopefully it resolves the issue for you in the meantime.

1 Like

Thanks
Unfortunately it didn’t

I downloaded it and ran sudo apt install ./(Package name) and it didn’t install, it upgraded it as seemingly it was already there

After I did that I rebooted and checked and the Dummy output is still there