A script to enable audio for Baytrail Chromebooks. Made and tested on Manjaro Linux but has some level of package manager detection.

baytrail-audio.sh

#!/bin/bash
# A script to make Baytrail Chromebooks' audio work (mostly) on most Linux
# distros. Tested on Manjaro and Ubuntu.

set -e

if ! [ -e "/usr/bin/git" ]; then
 echo "-> This script requires Git. Attempting to install."
 if [ -e "/usr/bin/pacman" ]; then
  sudo pacman -S git
 elif [ -e "/usr/bin/apt" ]; then
  sudo apt install git
 else
  echo "-> Unsupported distro - you must install Git manually."
  exit 1
 fi
fi

repo="https://github.com/galliumos/galliumos-baytrail"

cd "$HOME"

echo "-> Cloning $repo ..."
git clone -q "$repo"

cd galliumos-baytrail

echo "-> Copying files into / ..."
sudo cp -rv etc /
sudo cp -rv lib /usr
sudo cp -rv usr /
sudo cp -rv var /
sudo cp -v debian/galliumos-baytrail.service /etc/systemd/system/

echo "-> Enabling system services ..."
sudo systemctl unmask galliumos-baytrail
sudo systemctl enable galliumos-baytrail
sudo systemctl start galliumos-baytrail
echo
echo "Done. You should now reboot, and in my testing audio only works after a suspend and resume - ie, after rebooting you must close and reopen your laptop for audio to work."