I'm trying to fix support for my MacBook 5.1. A patch by Kacper is getting me part of the way there but it seems my pin configuration is different than his model of MacBook. I'm trying to wire up my pins to his correctly. I am trying to figure out the bits of snd_kcontrol_new (in alsa-driver-1.0.19/alsa-kernel/pci/hda/patch_realtek.c) for the HDA_CODEC_VOLUME and HDA_BIND_MUTE. There is: string_description, nid , xindex, HDA_INPUT/HDA_OUTPUT

I'm trying to figure out how to choose the correct values for nid and xindex. Actually, I'm really wondering how to identify the right xindex for a given nid, as I realize the nid's come from the Node #s from the output of /proc/asound/card0/codec#0.

I also need some assistance with regards to the hda_verb settings for modifying the alc885_mb5_init_verbs section; if anyone can offer pointers there, I'd appreciate it.

This is directly related to Bug #337314 in Launchpad https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/337314?comments=a... and ALSA bug 4432: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4432

Kacper's patch is linked to in both bug reports.

The output of my soundcard's codec#0 is attached to the Launchpad report https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/337314/comments/1...

The output from a soundcard that does seem to have full support by Kacper's patch is available at https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/337314/comments/1...

Any help would be much appreciated.

Thanks, Chris