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Subject[PATCH] ALSA: hda/realtek: Enable audio line out on ASUS D640SA
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This ASUS D640SA desktop whose mother board is D640MB has
- two jacks which are a headphone and a mic on the front panel,
- three jacks which are a mic, a line out and a line in on the rear panel
- one internal speaker.

If I plug a headphone to the front headphone jack, there will be sound
through the headphone jack, and no sound through the internal speaker.
If I unplug the headphone from the the headphone jack, there will be
sound through the internal speaker. And always no sound through rear
line out, when I plug a headphone or an externel speaker to the rear
line out jack.

Besides, I had checked and toggled the Auto-Mute Mode in alsamixer, but
the rear line out still was not working. Then I checked the sound
settings in GUI, and found there was no "Line Out" could be chosen, only
the "Headphones" and "HDMI/DisplayPort".
However, system does know that there is an "Intel PCH Line Out".

[ 10.089082] snd_hda_codec_realtek hdaudioC0D0: autoconfig for
ALC887-VD: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
[ 10.089083] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=1
(0x1a/0x0/0x0/0x0/0x0)
[ 10.089084] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1
(0x1b/0x0/0x0/0x0/0x0)
[ 10.089085] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 10.089086] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 10.089087] snd_hda_codec_realtek hdaudioC0D0: Rear Mic=0x18
[ 10.089088] snd_hda_codec_realtek hdaudioC0D0: Front Mic=0x19
[ 10.089089] snd_hda_codec_realtek hdaudioC0D0: Line=0x15
[ 10.104387] input: HDA Intel PCH Rear Mic as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input9
[ 10.104416] input: HDA Intel PCH Front Mic as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input10
[ 10.104441] input: HDA Intel PCH Line as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input11
[ 10.104467] input: HDA Intel PCH Line Out as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input12
[ 10.104494] input: HDA Intel PCH Front Headphone as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input13

Consequently, I checked the pin widgets' default configuration values:
- Node 0x14 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
Pin Default 0x01014010: [Jack] Line Out at Ext Rear

- Node 0x1b [Pin Complex] wcaps 0x40058f: Stereo Amp-In Amp-Out
Pin Default 0x02214030: [Jack] HP Out at Ext Front

Because the headphone jack (Node ID:0x1b) locates on the desktop's front
panel, not rear panel, I change the headphone jack's configuration from
primary chassis to separate chassis. So, the configuration value of
Node ID:0x1b should be 0x22214030.
Additionally, I toggle the Auto-Mute Mode of Realtek codecs to “Speaker
Only” which makes signal outputs through line out jack when the "Line
Out" is chosen in the sound settings.

Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
---
sound/pci/hda/patch_realtek.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index aef1f52db7d9..a066d84c6478 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1810,6 +1810,8 @@ enum {
ALC887_FIXUP_BASS_CHMAP,
ALC1220_FIXUP_GB_DUAL_CODECS,
ALC1220_FIXUP_CLEVO_P950,
+ ALC887_FIXUP_ASUS_AUTOMUTE_MODE,
+ ALC887_FIXUP_ASUS_FRONT_HP,
};

static void alc889_fixup_coef(struct hda_codec *codec,
@@ -2044,6 +2046,24 @@ static void alc1220_fixup_clevo_p950(struct hda_codec *codec,
snd_hda_override_conn_list(codec, 0x1b, 1, conn1);
}

+/* fix the default Auto-Mute Mode in mixer */
+static void alc887_fixup_asus_automute_mode(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ struct snd_kcontrol *kctl;
+ struct snd_ctl_elem_value *uctl;
+
+ kctl = snd_hda_find_mixer_ctl(codec, "Auto-Mute Mode");
+ if (!kctl)
+ return;
+ uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+ if (!uctl)
+ return;
+ uctl->value.enumerated.item[0] = 1;
+ kctl->put(kctl, uctl);
+ kfree(uctl);
+}
+
static const struct hda_fixup alc882_fixups[] = {
[ALC882_FIXUP_ABIT_AW9D_MAX] = {
.type = HDA_FIXUP_PINS,
@@ -2288,6 +2308,19 @@ static const struct hda_fixup alc882_fixups[] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc1220_fixup_clevo_p950,
},
+ [ALC887_FIXUP_ASUS_AUTOMUTE_MODE] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc887_fixup_asus_automute_mode,
+ },
+ [ALC887_FIXUP_ASUS_FRONT_HP] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ {0x1b, 0x22214030},
+ {}
+ },
+ .chained = true,
+ .chain_id = ALC887_FIXUP_ASUS_AUTOMUTE_MODE,
+ },
};

static const struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -2321,6 +2354,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
SND_PCI_QUIRK(0x1043, 0x13c2, "Asus A7M", ALC882_FIXUP_EAPD),
SND_PCI_QUIRK(0x1043, 0x1873, "ASUS W90V", ALC882_FIXUP_ASUS_W90V),
SND_PCI_QUIRK(0x1043, 0x1971, "Asus W2JC", ALC882_FIXUP_ASUS_W2JC),
+ SND_PCI_QUIRK(0x1043, 0x2160, "ASUSPRO D640MB", ALC887_FIXUP_ASUS_FRONT_HP),
SND_PCI_QUIRK(0x1043, 0x835f, "Asus Eee 1601", ALC888_FIXUP_EEE1601),
SND_PCI_QUIRK(0x1043, 0x84bc, "ASUS ET2700", ALC887_FIXUP_ASUS_BASS),
SND_PCI_QUIRK(0x1043, 0x8691, "ASUS ROG Ranger VIII", ALC882_FIXUP_GPIO3),
--
2.11.0
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