My HP Compaq nc6530b has the same audio codecs (AD1984A, LSI ID 1040) as the HP 6735b described in Jarl's comment (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/269027/comments/31). His solution works for me too.
My HP Compaq nc6530b has the same audio codecs (AD1984A, LSI ID 1040) as the HP 6735b described in Jarl's comment (https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/269027/ comments/ 31). His solution works for me too.