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Last active August 4, 2019 22:18
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Debug audio on ChromiumOS (or Generic linux tablet)

Fix broken audio on ChromiumOS

Fix commands :

  • Ctrl + Alt + T

  • shell

  • cras Check output if any errors, you are good to find config files.

  • If something is missing, go on https://github.com/plbossart/UCM to find missing files (or elsewhere.)

  • Boot under Ubuntu or another live usb to put files at the correct place sudo cp -rf ../bytcr-rt5640 /usr/share/alsa/ucm

  • If bytcr-rt5640, you need to disable HDMI LPE Audio to make sound working.

sudo nano /etc/modprobe.d/blacklist_snd_hdmi_lpe_audio.conf

insert into :

blacklist snd_hdmi_lpe_audio
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