[alsa-devel] Constant noise on HDA ALC275

[Takashi Iwai]

At Mon, 08 Oct 2012 14:57:23 +0200,
Julien Danjou wrote:
> 
> On Mon, Oct 08 2012, Takashi Iwai wrote:
> 
> > It's interesting.  So, _unmuting_ the input from NID 0x1d removes the
> > noise?  (0x80 means the channel is muted.)
> 
> Yes, that's it.
> 
> (I just unloaded and reloaded the module and rechecked).

OK, then could you try the patch below?


Takashi

---
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8568aee..42dd605 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5988,10 +5988,22 @@ static void alc269_fixup_mic2_mute(struct hda_codec *codec,
 	}
 }
 
+static void alc275_fixup_vaio_mixer(struct hda_codec *codec,
+				    const struct alc_fixup *fix, int action)
+{
+	/* _UN_muting the input from NID 0x1d fixes the mysterious speaker
+	 * noise on Sony VAIO Z
+	 */
+	if (action == ALC_FIXUP_ACT_INIT)
+		snd_hda_codec_write(codec, 0x0b, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE,
+				    AMP_IN_UNMUTE(4));
+}
 
 enum {
 	ALC269_FIXUP_SONY_VAIO,
 	ALC275_FIXUP_SONY_VAIO_GPIO2,
+	ALC275_FIXUP_SONY_VAIO_MIXER,
 	ALC269_FIXUP_DELL_M101Z,
 	ALC269_FIXUP_SKU_IGNORE,
 	ALC269_FIXUP_ASUS_G73JW,
@@ -6031,6 +6043,12 @@ static const struct alc_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_SONY_VAIO
 	},
+	[ALC275_FIXUP_SONY_VAIO_MIXER] = {
+		.type = ALC_FIXUP_FUNC,
+		.v.func = alc275_fixup_vaio_mixer,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_SONY_VAIO
+	},
 	[ALC269_FIXUP_DELL_M101Z] = {
 		.type = ALC_FIXUP_VERBS,
 		.v.verbs = (const struct hda_verb[]) {
@@ -6172,6 +6190,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x104d, 0x9073, "Sony VAIO", ALC275_FIXUP_SONY_VAIO_GPIO2),
 	SND_PCI_QUIRK(0x104d, 0x907b, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
 	SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
+	SND_PCI_QUIRK(0x104d, 0x90a5, "Sony VAIO Z", ALC275_FIXUP_SONY_VAIO_MIXER),
 	SND_PCI_QUIRK_VENDOR(0x104d, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
 	SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
 	SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),