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When I open sound settings, No profile options are listed for "Built-in audio" except for "Off".

Machine is a Acer Chromebook Spin 713 with MrChromeBox coreboot firmware and Ubuntu MATE 21.04 installed (however, issue also exists with Lubuntu 20.04.3). Laptop has built-in speakers and a 3.5mm audio jack, but does not recognize any playback audio devices except HDMI.

Sound Device: 00:1f.3 Multimedia audio controller: Intel Corporation Comet Lake PCH-LP cAVS DeviceName: Multimedia audio controller Subsystem: Intel Corporation Comet Lake PCH-LP cAVS Flags: bus master, fast devsel, latency 64, IRQ 148 Memory at 9fa14000 (64-bit, non-prefetchable) [size=16K] Memory at 9f900000 (64-bit, non-prefetchable) [size=1M] Capabilities: Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel, snd_sof_pci

alsa-info output: http://alsa-project.org/db/?f=7d8c2e0f06a902f817c71fdf4aae1f16e7b21227

Note: I have made one modification to /etc/modprobe.d/alsa-base.conf, adding the following line: "options snd-hda-intel dmic-detect=0" Before this, the laptop's sound card was not being recognized at all.

alsa-info output from before: http://alsa-project.org/db/?f=3c348ee95fa38bceb3f25e38e4de431766f808c8

xtheobscure
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1 Answers1

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Credits: https://github.com/WeirdTreeThing/chromebook-linux-audio

This worked for me on Ubuntu 24.04 (development branch). You'll need to erase the Python function that searches for Ubuntu and stops the process if it is found. The function is called ubuntu(). This is in the setup-audio file. Open this file with your text editor of choice. A link to the image that shows which is the function you'll need to erase is found at the end of this answer. Make sure to also erase any other lines that call this function. After you finish, run the setup-audio file in your terminal. Then reboot. You should have sound now.

This is known to work on Ubuntu 23.10 and later releases.

More on: How to install Chromebook audio drivers in Ubuntu?

Image: https://i.sstatic.net/KyNPh0Gy.png

Another solution:

Credits: https://gist.github.com/jeremy-breidenbach/92fc648ed2590ff9cd3a0ae57ed98e4a

This has also worked for me in Ubuntu 24.04, since I had to reset my installation and I had to reinstall all the drivers again.

Download the "asound.state" file. Kill all the audio services with sudo alsa force-unload. After, run sudo cp ~/Downloads/asound.state /var/lib/alsa to replace the system's sound config file with the "asound.state" file. Then reboot. You should have sound.

E.S
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