[alsa-devel] [PATCH] ALSA: hda - Prevent speaker from entering automute on some AIO models

[Hui Wang]

On 01/13/2014 06:01 PM, Takashi Iwai wrote:
> At Mon, 13 Jan 2014 14:52:27 +0800,
> Hui Wang wrote:
>> On some AIO (All In One) models with the codec alc668
>> (Vendor ID: 0x10ec0668) on it, when we plug a headphone into the jack,
>> the system will switch the output to headphone and set the speaker to
>> automute as well as change the speaker Pin-ctls from 0x40 to 0x00,
>> this will bring loud noise to the headphone.
>>
>> I tried to disable the corresponding EAPD, but it did not help to
>> eliminate the noise.
>>
>> So far, the only way to eliminate the noise is preventing the speaker
>> from entering automute.
>>
>> BugLink: https://bugs.launchpad.net/bugs/1268468
>> Cc: David Henningsson <david.henningsson at canonical.com>
>> Cc: stable at vger.kernel.org
>> Signed-off-by: Hui Wang <hui.wang at canonical.com>
> What about to use auto_mute_via_amp flag instead like the patch below?
>
OK, I will test this patch and will report the test result tomorrow.

Regards,
Hui.
> Takashi
>
> ---
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index d35cf3dc6711..a1c16457880e 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -3580,6 +3580,15 @@ static void alc_fixup_headset_mode_alc255(struct hda_codec *codec,
>   	alc_fixup_headset_mode(codec, fix, action);
>   }
>   
> +static void alc_fixup_auto_mute_via_amp(struct hda_codec *codec,
> +					const struct hda_fixup *fix, int action)
> +{
> +	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
> +		struct alc_spec *spec = codec->spec;
> +		spec->gen.auto_mute_via_amp = 1;
> +	}
> +}
> +
>   static void alc_fixup_headset_mode_alc668(struct hda_codec *codec,
>   				const struct hda_fixup *fix, int action)
>   {
> @@ -4839,6 +4848,7 @@ enum {
>   	ALC662_FIXUP_BASS_CHMAP,
>   	ALC662_FIXUP_BASS_1A,
>   	ALC662_FIXUP_BASS_1A_CHMAP,
> +	ALC668_FIXUP_AUTO_MUTE,
>   };
>   
>   static const struct hda_fixup alc662_fixups[] = {
> @@ -4999,6 +5009,12 @@ static const struct hda_fixup alc662_fixups[] = {
>   		.type = HDA_FIXUP_FUNC,
>   		.v.func = alc_fixup_inv_dmic_0x12,
>   	},
> +	[ALC668_FIXUP_AUTO_MUTE] = {
> +		.type = HDA_FIXUP_FUNC,
> +		.v.func = alc_fixup_auto_mute_via_amp,
> +		.chained = true,
> +		.chain_id = ALC668_FIXUP_DELL_MIC_NO_PRESENCE
> +	},
>   	[ALC668_FIXUP_DELL_MIC_NO_PRESENCE] = {
>   		.type = HDA_FIXUP_PINS,
>   		.v.pins = (const struct hda_pintbl[]) {
> @@ -5044,11 +5060,11 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
>   	SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
>   	SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
>   	SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
> -	SND_PCI_QUIRK(0x1028, 0x0623, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
> -	SND_PCI_QUIRK(0x1028, 0x0624, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
> +	SND_PCI_QUIRK(0x1028, 0x0623, "Dell", ALC668_FIXUP_AUTO_MUTE),
> +	SND_PCI_QUIRK(0x1028, 0x0624, "Dell", ALC668_FIXUP_AUTO_MUTE),
>   	SND_PCI_QUIRK(0x1028, 0x0625, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
>   	SND_PCI_QUIRK(0x1028, 0x0626, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
> -	SND_PCI_QUIRK(0x1028, 0x0628, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
> +	SND_PCI_QUIRK(0x1028, 0x0628, "Dell", ALC668_FIXUP_AUTO_MUTE),
>   	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
>   	SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_BASS_1A_CHMAP),
>   	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_CHMAP),
>
>