Similar or same hardware (code is FGG instead of FEG), same problem.
What I have:
- options for module hda_intel is: position_fix=1 model=3stack
- tested other option combinations with no success (tried probe_mask=8 with no success)
- disabling acpi but ht makes the sound work clear and loud, but not an ideal solution I think
- patched alsa-dirvers with realtek6 with no success
In conclusion, I tried out all suggested solutions I could find on the web, but with no appreciable result.
Hope someone will be able to fix this, as I think this hardware is pretty common these days.