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From: Alexander Monakov <>
Cc: Alexander Monakov <>,
	Jaroslav Kysela <>, Takashi Iwai <>,
	Hui Wang <>,
	Kailang Yang <>,
	Jeremy Szu <>,
	Jian-Hong Pan <>,
	Chris Chiu <>,
	PeiSen Hou <>,
Subject: [PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42
Date: Wed, 21 Jul 2021 20:01:41 +0300	[thread overview]
Message-ID: <> (raw)

The Acer Swift SF314-42 laptop is using Realtek ALC255 codec. Add a
quirk so microphone in a headset connected via the right-hand side jack
is usable.

Signed-off-by: Alexander Monakov <>
Cc: Jaroslav Kysela <>
Cc: Takashi Iwai <>
Cc: Hui Wang <>
Cc: Kailang Yang <>
Cc: Jeremy Szu <>
Cc: Jian-Hong Pan <>
Cc: Chris Chiu <>
Cc: PeiSen Hou <>

Acer Swift SF314-42 laptop is using AMD Ryzen SoC audio with Realtek
ALC255 codec. The are three ALSA cards: HDMI audio, AMD ACP card, and
AMD HDA card. There is an internal stereo microphone connected to the
ACP card, and a mini-jack connected to the Realtek codec. There are no

I'd like to be able to use a mic+headphones headset. Unfortunately, out
of the box ALSA does not correctly detect the microphone input of the
Realtek codec.  The suggested patch fixes that, though I cannot be sure
it's 100% correct.

With the patch, the experience is unfortunately still not ideal. I have
noticed a couple of issues:

1) at high enough gain, recording the microphone is picking up what is
being played via the headphones; maybe it's supposed to be like that,
but it surprised me;

2) there is a very noticeable "pop" when plugging the headset in/out,
accompanied by

pcieport 0000:00:08.1: PME: Spurious native interrupt!
pcieport 0000:00:08.1: PME: Spurious native interrupt!

in dmesg. I'd appreciate info and any help about this issue.


 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ab5113cccffa..87ad8469dbc5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8191,6 +8191,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x1308, "Acer Aspire Z24-890", ALC286_FIXUP_ACER_AIO_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x132a, "Acer TravelMate B114-21", ALC233_FIXUP_ACER_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x1330, "Acer TravelMate X514-51T", ALC255_FIXUP_ACER_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1025, 0x142b, "Acer Swift SF314-42", ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1025, 0x1430, "Acer TravelMate B311R-31", ALC256_FIXUP_ACER_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1025, 0x1466, "Acer Aspire A515-56", ALC255_FIXUP_ACER_HEADPHONE_AND_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),

base-commit: 62fb9874f5da54fdb243003b386128037319b219

             reply	other threads:[~2021-07-21 17:02 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 17:01 Alexander Monakov [this message]
2021-07-28 17:02 ` Takashi Iwai
2021-07-28 20:03   ` Alexander Monakov
2021-08-03 11:47     ` Takashi Iwai

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