[PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42

[PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42

[Alexander Monakov]

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 <amonakov@ispras.ru>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Hui Wang <hui.wang@canonical.com>
Cc: Kailang Yang <kailang@realtek.com>
Cc: Jeremy Szu <jeremy.szu@canonical.com>
Cc: Jian-Hong Pan <jhp@endlessos.org>
Cc: Chris Chiu <chris.chiu@canonical.com>
Cc: PeiSen Hou <pshou@realtek.com>
Cc: alsa-devel@alsa-project.org
---
Hello,

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
LEDs.

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.

Thanks.
Alexander

 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
-- 
2.31.1

Re: [PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42

[Takashi Iwai]

On Wed, 21 Jul 2021 19:01:41 +0200,
Alexander Monakov wrote:
> 
> 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 <amonakov@ispras.ru>
> Cc: Jaroslav Kysela <perex@perex.cz>
> Cc: Takashi Iwai <tiwai@suse.com>
> Cc: Hui Wang <hui.wang@canonical.com>
> Cc: Kailang Yang <kailang@realtek.com>
> Cc: Jeremy Szu <jeremy.szu@canonical.com>
> Cc: Jian-Hong Pan <jhp@endlessos.org>
> Cc: Chris Chiu <chris.chiu@canonical.com>
> Cc: PeiSen Hou <pshou@realtek.com>
> Cc: alsa-devel@alsa-project.org
> ---
> Hello,
> 
> 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
> LEDs.
> 
> 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;

Hrm, that doesn't sound right.  Some internal loopback in the codec?
Dunno.  It doesn't pick up the sound physically, right?

> 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.

The pop noise is often a thing with the codec and there are a bunch of
different workarounds found in the driver.  But the spurious interrupt
is more worrisome.  Is the PCI slot corresponding to the HD-audio
controller?

As of now, I'm inclined to take your patch as is, at least as a
first-aid workaround.  Let's see whether we get a better development
soonish.


thanks,

Takashi

> 
> Thanks.
> Alexander
> 
>  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
> -- 
> 2.31.1
> 

Re: [PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42

[Alexander Monakov]

On Wed, 28 Jul 2021, Takashi Iwai wrote:

> > 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;
> 
> Hrm, that doesn't sound right.  Some internal loopback in the codec?
> Dunno.  It doesn't pick up the sound physically, right?

How can I tell? If I don't have anything plugged into the jack, playback
uses the built-in speakers. In that case there's no feedback. And if I
plug in a headset or common headphones, then built-in speakers are automatically
muted, and recording the mic can pick up the output signal.

Is there a way to forcefully direct output to the jack instead of built-in
speakers even when there isn't anything plugged in?

I am sure it is not picking the sound over the air, but I'm considering it's
picking it up electrically near the jack somehow.

> > 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.
> 
> The pop noise is often a thing with the codec and there are a bunch of
> different workarounds found in the driver.  But the spurious interrupt
> is more worrisome.  Is the PCI slot corresponding to the HD-audio
> controller?

No, it's actually the PCI bridge under which the HDA core resides:

00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
00:08.1/03:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller

Note that I have autosuspend enabled for PCI devices. If I disable PCI
autosuspend for the 03:00.6 HDA device, there's no "pop" and no spurious
interrupt. My understanding that the chip generates a power management event
when it senses a jack plug/unplug event while suspended. Apparently something
about the PME interrupt is not fully in order?

> As of now, I'm inclined to take your patch as is, at least as a
> first-aid workaround.  Let's see whether we get a better development
> soonish.

*nod*, I will appreciate it!

Thank you.
Alexander

Re: [PATCH] ALSA: hda/realtek: add mic quirk for Acer SF314-42

[Takashi Iwai]

On Wed, 28 Jul 2021 22:03:45 +0200,
Alexander Monakov wrote:
> 
> On Wed, 28 Jul 2021, Takashi Iwai wrote:
> 
> > > 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;
> > 
> > Hrm, that doesn't sound right.  Some internal loopback in the codec?
> > Dunno.  It doesn't pick up the sound physically, right?
> 
> How can I tell? If I don't have anything plugged into the jack, playback
> uses the built-in speakers. In that case there's no feedback. And if I
> plug in a headset or common headphones, then built-in speakers are automatically
> muted, and recording the mic can pick up the output signal.
> 
> Is there a way to forcefully direct output to the jack instead of built-in
> speakers even when there isn't anything plugged in?
> 
> I am sure it is not picking the sound over the air, but I'm considering it's
> picking it up electrically near the jack somehow.
> 
> > > 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.
> > 
> > The pop noise is often a thing with the codec and there are a bunch of
> > different workarounds found in the driver.  But the spurious interrupt
> > is more worrisome.  Is the PCI slot corresponding to the HD-audio
> > controller?
> 
> No, it's actually the PCI bridge under which the HDA core resides:
> 
> 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
> 00:08.1/03:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
> 
> Note that I have autosuspend enabled for PCI devices. If I disable PCI
> autosuspend for the 03:00.6 HDA device, there's no "pop" and no spurious
> interrupt. My understanding that the chip generates a power management event
> when it senses a jack plug/unplug event while suspended. Apparently something
> about the PME interrupt is not fully in order?
> 
> > As of now, I'm inclined to take your patch as is, at least as a
> > first-aid workaround.  Let's see whether we get a better development
> > soonish.
> 
> *nod*, I will appreciate it!

FYI, I merged the fix to for-linus branch, which will be likely
included in Linus tree in this week.

For the rest issue, at least about the bogus messages from PCI bridge,
better to report to the PCI subsystem.  It's possibly some missing PCI
quirk for the specific chip.


thanks,

Takashi