sudo modprobe -r snd_hda_intel
sudo modprobe snd_hda_intel model=,103c:8a6b   

Once your kernel version is upgraded, please also help test this. This
fix is my previous patch; please test whether it can restore sound at
boot without needing to manually set the coefficients. The version where
my patch was merged is: v7.2-rc3

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https://bugs.launchpad.net/bugs/1982483

Title:
  No sound from built-in speakers HP Pavilion All-in-One Desktop
  27-ca1xxx (ALC274)

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