Commit cbe43c3d authored by Hui Wang's avatar Hui Wang Committed by Greg Kroah-Hartman

ALSA: hda/realtek: Disable PC beep in passthrough on alc285

commit c8c6ee61 upstream.

It is reported that there's a constant background "hum/whitenoise"
in the headset on the Lenovo X1 machines with the codec alc285, and it
is confirmed that if we run the command below, the noise will stop.
 sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0

Then I consulted this issue with Kailang, he told me the pin 0x1d on
this codec is used for PC beep in, the noise probably comes from this
pin and we can also disable the PC beep in passthrough, then the PC
beep in will not affect other sound playback.

Fixes: c4cfcf6f ("ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1660581
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarKailang Yang <kailang@realtek.com>
Signed-off-by: default avatarHui Wang <hui.wang@canonical.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c607b6d1
......@@ -5601,6 +5601,7 @@ enum {
ALC294_FIXUP_ASUS_HEADSET_MIC,
ALC294_FIXUP_ASUS_SPK,
ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
ALC285_FIXUP_LENOVO_PC_BEEP_IN_NOISE,
};
static const struct hda_fixup alc269_fixups[] = {
......@@ -6534,6 +6535,17 @@ static const struct hda_fixup alc269_fixups[] = {
.chained = true,
.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
},
[ALC285_FIXUP_LENOVO_PC_BEEP_IN_NOISE] = {
.type = HDA_FIXUP_VERBS,
.v.verbs = (const struct hda_verb[]) {
/* Disable PCBEEP-IN passthrough */
{ 0x20, AC_VERB_SET_COEF_INDEX, 0x36 },
{ 0x20, AC_VERB_SET_PROC_COEF, 0x57d7 },
{ }
},
.chained = true,
.chain_id = ALC285_FIXUP_LENOVO_HEADPHONE_NOISE
},
};
static const struct snd_pci_quirk alc269_fixup_tbl[] = {
......@@ -7215,7 +7227,7 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x12, 0x90a60130},
{0x19, 0x03a11020},
{0x21, 0x0321101f}),
SND_HDA_PIN_QUIRK(0x10ec0285, 0x17aa, "Lenovo", ALC285_FIXUP_LENOVO_HEADPHONE_NOISE,
SND_HDA_PIN_QUIRK(0x10ec0285, 0x17aa, "Lenovo", ALC285_FIXUP_LENOVO_PC_BEEP_IN_NOISE,
{0x12, 0x90a60130},
{0x14, 0x90170110},
{0x19, 0x04a11040},
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment