Sound only works in headphones

[nan60]

This does seem to indeed be an in-tree kernel issue. Does your microphone work? If not try adding

Code:

snd_rn_pci_acp3x.dmic_acpi_check=1

to your kernel parameters. If that doesn't work, you could try blacklisting the

Code:

snd_pci_acp3x

module. These are all shots in the dark however. We'll figure this out...