Comment 8 for bug 369047

pitabred -- I love the unintentional pun about my post to the alsa-dev list -- the name I go by is Guy (my middle name :-) I have an update on my issue. I cannot begin to remember exactly what I did, but I got sound working at one point. I can distinctly remember making the latest also-driver-snapshot source and typing make install-modules and on reboot having sound. But, alas, it is now gone again. I had some serious issues with grub (after upgrading to grub2 -- what a mistake) and the restore process involved a lot of package purges and reinstalls. That, of course, lost the alsa-driver modules. Just this evening I tried the make install-modules when I noticed I didn't have sound again. And I'm back where I was several weeks ago. No sound on the SB output. The HDMI is correctly found. The also-dev gurus think this is a kernel issue. So, like you I'm available for tshooting should anyone here think I can help. I have an HP dv4 laptop:

lspci -

00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
..
01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller

nak@Harlindon ~>dmesg | grep -i hda
[ 23.867831] hda-intel: unable to grab IRQ 0, disabling device
[ 23.867897] HDA Intel: probe of 0000:00:14.2 failed with error -16
[ 23.867958] HDA Intel 0000:01:05.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[ 23.868043] HDA Intel 0000:01:05.1: setting latency timer to 64

This is what things look like when it works (from dmesg.0) -

May 12 23:56:19 Harlindon kernel: [ 21.379654] HDA Intel 0000:00:14.2: setting latency timer to 64
May 12 23:56:19 Harlindon kernel: [ 21.619498] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:3833: autoconfig: line_outs=1 (0xd/0x0/0x0/0x0/0x0)
May 12 23:56:19 Harlindon kernel: [ 21.619503] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:3837: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
May 12 23:56:19 Harlindon kernel: [ 21.619507] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:3841: hp_outs=1 (0xa/0x0/0x0/0x0/0x0)
May 12 23:56:19 Harlindon kernel: [ 21.619511] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:3842: mono: mono_out=0x0
May 12 23:56:19 Harlindon kernel: [ 21.619515] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:3853: inputs: mic=0xb, fmic=0x0, line=0x0, fline=0x0, cd=0x0, aux=0x0
May 12 23:56:19 Harlindon kernel: [ 21.619776] ALSA /home/nak/Documents/Downloads/alsa/alsa-driver-snapshot/pci/hda/../../alsa-kernel/pci/hda/patch_sigmatel.c:2990: stac92xx: dac_nids=1 (0x10/0x0/0x0/0x0/0x0)
May 12 23:56:19 Harlindon kernel: [ 21.667225] HDA Intel 0000:01:05.1: setting latency timer to 64

I have no idea, of course, why purging all the kernel images, then reinstalling the latest generic and remaking and make installing the latest alsa-driver-snapshot doesn't work.