Ok, seems like I have no luck. Here were some general tests that I did and the dmesg results:

alias snd-card-0 snd-hda-intel alias sound-slot-0 snd-hda-intel options snd-hda-intel model=hp-dv5

[ 94.194443] hda-intel: Invalid position buffer, using LPIB read method instead. [ 265.860938] HDA Intel 0000:01:05.1: PCI INT B disabled [ 265.968343] HDA Intel 0000:00:14.2: PCI INT A disabled [ 266.908393] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 266.944615] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/input/input14 [ 267.037347] input: HDA ATI SB at 0xd2500000 irq 16 Mic at Ext Front Jack as /devices/pci0000:00/0000:00:14.2/input/input15 [ 267.064233] input: HDA ATI SB at 0xd2500000 irq 16 HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:14.2/input/input16 [ 267.080415] HDA Intel 0000:01:05.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19 [ 267.080445] HDA Intel 0000:01:05.1: setting latency timer to 64 [ 315.093428] hda-intel: Invalid position buffer, using LPIB read method instead.

options snd-hda-intel model=hp-dv5 enable_msi=1

[ 514.468839] APIC error on CPU1: 00(08) [ 514.468851] APIC error on CPU0: 00(08) [ 515.472557] ALSA /usr/src/Alsa-1.0.19/alsa-driver-1.0.19/pci/hda/hda_intel.c:621: hda_intel: No response from codec, disabling MSI: last cmd=0x000f0000 [ 516.476554] ALSA /usr/src/Alsa-1.0.19/alsa-driver-1.0.19/pci/hda/hda_intel.c:634: hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x000f0000

options snd-hda-intel model=hp-dv5 probe_mask=1

[ 512.740875] HDA Intel 0000:01:05.1: PCI INT B disabled [ 512.853833] HDA Intel 0000:00:14.2: PCI INT A disabled [ 514.077692] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 514.150312] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/input/input17 [ 514.412696] input: HDA ATI SB at 0xd2500000 irq 16 Mic at Ext Front Jack as /devices/pci0000:00/0000:00:14.2/input/input18 [ 514.433025] input: HDA ATI SB at 0xd2500000 irq 16 HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:14.2/input/input19 [ 514.454995] HDA Intel 0000:01:05.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19 [ 514.455153] HDA Intel 0000:01:05.1: setting latency timer to 64

Now something weird is that when I initially changed to just model=hp-dv5, the mute light on my laptop went from orange to white. But no sound played. Then after the above tests failed, I started to try different models again (such as auto, laptop) and now that light is orange. So I changed back to just model=hp-dv5, and the light is still orange.

Any other suggestions?

----- Original Message ----- From: "Takashi Iwai" tiwai@suse.de To: "Andrew Eleneski" aeleneski@comcast.net Cc: alsa-devel@alsa-project.org Sent: Thursday, February 5, 2009 2:15:08 AM GMT -05:00 US/Canada Eastern Subject: Re: [alsa-devel] No sound for HP Pavilion DV4z

At Wed, 4 Feb 2009 17:42:32 -0500, Andrew Eleneski wrote:

Hi,

I am running Kubuntu 8.10 64-bit and have no sound. Using the distribution supplied Alsa version, I was at one point able to have sound through just the headphone jacks, but after using this script ( http://ubuntuforums.org/showthread.php?t=1046137&highlight=alsa+upgrade) and trying to upgrade to the latest version 1.0.19, I have no sound at all. Attached is my alsa-info.txt file to help in debugging what is wrong.

1. Name your Ubuntu revision: Kubuntu 8.10 64-bit
2. Kernel revision: 2.6.27-11-generic
3. Alsa revision: 1.0.19
4. A bit of background what you've done resp. done before:

I have tried multitudes of values in /etc/modprobe.d/alsa-base, nothing seems to work. Saw in changelog for Alsa 1.0.19 there were many changes geared toward HP dvX series laptops, seems to have no effect with mine.

Try model=hp-dv5 with the very latest alsa-driver snapshot below ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz

If you have a luck, it may work. Some HP dv4 model seems to have a broken BIOS while some has a correct one.

Takashi