I have the same issue with Gigabyte B450 AORUS PRO (ALC1220) on Ubuntu 18.04.1 LTS and kernel 4.15.0 (default).
Playback work well, recording crackles. I tried Frédéric's script fixing coeffs - most of these values were different indeed - but it doesn't help.
I have the same issue with Gigabyte B450 AORUS PRO (ALC1220) on Ubuntu 18.04.1 LTS and kernel 4.15.0 (default).
Playback work well, recording crackles. I tried Frédéric's script fixing coeffs - most of these values were different indeed - but it doesn't help.