Bug#428270: libopenal0a: sound is badly distorted on intel audio using alsa

[Eddy Petrișor]

Paul Wise wrote:
> On Sun, 2007-06-10 at 12:52 +0200, Cyril Brulebois wrote:
> 
>>> How would I check these things?
>> In the kernel sources, check sound/pci/hda/, the mapping is apparently
>> (at least in my case) this way:
> 
> I see:
> 
>         { 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */
> and
> 
> ./patch_realtek.c:      SND_PCI_QUIRK(0x2668, 0x8086, NULL, ALC880_6ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0x2668, NULL, ALC880_6ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe308, "Intel mobo", ALC880_3ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe305, "Intel mobo", ALC880_3ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xd402, "Intel mobo", ALC880_3ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xd400, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xd401, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe224, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe400, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe401, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xe402, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xa100, "Intel mobo", ALC880_5ST_DIG),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0, "Intel mobo", ALC880_3ST),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xd601, "D102GGC", ALC883_3ST_6ch),
> ./patch_realtek.c:      SND_PCI_QUIRK(0x8086, 0xd600, "Intel", ALC861_3ST),
> 
> Not sure which if any apply to my card.

Look in linux-x.y.zz/Documentation/sound/alsa/ALSA-Configuration.txt, "Module snd-hda-intel" for more information.

For my Dell Inspiron 6400/E1505 this works (headphones work, too):

/etc/modprobe.d/alsa-base:options snd-hda-intel model=laptop-dig position_fix=1

-- 
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein

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