[alsa-devel] [PATCH] ALSA: hda - add headset mic detect quirk for a Dell laptop

[David Henningsson]

(Drop stable from cc)

On 2014-04-30 12:37, Takashi Iwai wrote:
> At Wed, 30 Apr 2014 11:06:00 +0800,
> Hui Wang wrote:
>>
>> When we plug a 3-ring headset on the Dell machine (VID: 0x10ec0255,
>> SID: 0x1028067e), the headset mic can't be detected, after apply this
>> patch, the headset mic can work well.
>>
>> BugLink: https://bugs.launchpad.net/bugs/1297581
>> Cc: David Henningsson <david.henningsson at canonical.com>
>> Cc: stable at vger.kernel.org
>> Signed-off-by: Hui Wang <hui.wang at canonical.com>
>
> Thanks, applied.
>
> But now I'm slowly thinking of cleaning these messes; can't we detect
> this a bit more elegantly?

I've been thinking of that too. I'm wondering if the combination of 
vendor (Dell), codec (e g ALC255), and pin config could be wise here? I 
e, if all of the pin configuration default values are exactly the same, 
then we should be reasonably sure that it is to be used in the same way.

So, essentially have a quirk table with PCI Subvendor + codec + pin 
config as key? What do you think of that?

>
>
> Takashi
>
>> ---
>>   sound/pci/hda/patch_realtek.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
>> index e96ab33..b60de0d 100644
>> --- a/sound/pci/hda/patch_realtek.c
>> +++ b/sound/pci/hda/patch_realtek.c
>> @@ -4711,6 +4711,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>>   	SND_PCI_QUIRK(0x1028, 0x0668, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE),
>>   	SND_PCI_QUIRK(0x1028, 0x0669, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE),
>>   	SND_PCI_QUIRK(0x1028, 0x0674, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
>> +	SND_PCI_QUIRK(0x1028, 0x067e, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
>>   	SND_PCI_QUIRK(0x1028, 0x067f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
>>   	SND_PCI_QUIRK(0x1028, 0x15cc, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
>>   	SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
>> --
>> 1.8.1.2
>>
>

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic