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authorGabriele Mazzotta <gabriele.mzt@gmail.com>2014-05-20 18:58:26 +0200
committerTakashi Iwai <tiwai@suse.de>2014-05-21 11:00:06 +0200
commit5e6db6699b7651f02f4b7cc6a86f5b3d9359d636 (patch)
tree32f1239059e1f15e40e012b340a97b54af07e659
parentf73387cb6b1f1534e56669e6aecefae1be867f59 (diff)
ALSA: hda - White noise fix for XPS13 9333
Disable the AA-loopback path to get rid of the constant white noise that can be heard when headphones are used. Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/patch_realtek.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 40f9b5d..680283b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3970,6 +3970,16 @@ static void alc_fixup_no_shutup(struct hda_codec *codec,
}
}
+static void alc_fixup_disable_aamix(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+ struct alc_spec *spec = codec->spec;
+ /* Disable AA-loopback as it causes white noise */
+ spec->gen.mixer_nid = 0;
+ }
+}
+
static void alc_fixup_headset_mode_alc668(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
@@ -5414,6 +5424,7 @@ enum {
ALC662_FIXUP_BASS_1A,
ALC662_FIXUP_BASS_CHMAP,
ALC668_FIXUP_AUTO_MUTE,
+ ALC668_FIXUP_DELL_DISABLE_AAMIX,
};
static const struct hda_fixup alc662_fixups[] = {
@@ -5580,6 +5591,12 @@ static const struct hda_fixup alc662_fixups[] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_inv_dmic_0x12,
},
+ [ALC668_FIXUP_DELL_DISABLE_AAMIX] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc_fixup_disable_aamix,
+ .chained = true,
+ .chain_id = ALC668_FIXUP_DELL_MIC_NO_PRESENCE
+ },
[ALC668_FIXUP_AUTO_MUTE] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_auto_mute_via_amp,
@@ -5640,7 +5657,7 @@ 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, 0x060a, "Dell XPS 13", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
+ SND_PCI_QUIRK(0x1028, 0x060a, "Dell XPS 13", ALC668_FIXUP_DELL_DISABLE_AAMIX),
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),