Comment 52 for bug 1252733

@Raymond
I'm sorry, I can't follow what you are saying, I don't know much about hda nor alsa.
I confirm that the pin config of 0x19 is required for microphones, without it they are not detected, I just tested it.

@dbyte
Did you try what I wrote in comment #34? The problem could be the same and by looking at the output of your alsa-info.sh I think the script I posted will work as intended, but I can't say whether it will get rid of the noise or not.