[alsa-devel] [PATCH] ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen

[Kailang]

Hi,

This platform speaker 2 bind DAC 0x2 was default.
Use ALC295_FIXUP_DISABLE_DAC3 model will place to DAC 0x3.
DAC 0x3 was use as Headphone.

If you want to use as your patch, you could use it at your site.
Thanks.

BR,
Kailang

> -----Original Message-----
> From: Benjamin Poirier <benjamin.poirier at gmail.com>
> Sent: Monday, February 10, 2020 11:04 AM
> To: Jaroslav Kysela <perex at perex.cz>
> Cc: ALSA development <alsa-devel at alsa-project.org>; Takashi Iwai
> <tiwai at suse.de>; Kailang <kailang at realtek.com>
> Subject: Re: [alsa-devel] [PATCH] ALSA: hda - fixup for the bass speaker on
> Lenovo Carbon X1 7th gen
> 
> On 2020/02/10 11:52 +0900, Benjamin Poirier wrote:
> > On 2019/11/29 15:40 +0100, Jaroslav Kysela wrote:
> > > The auto-parser assigns the bass speaker to DAC3 (NID 0x06) which is
> > > without the volume control. I do not see a reason to use DAC2,
> > > because the shared output to all speakers produces the sufficient
> > > and well balanced sound. The stereo support is enough for this
> > > purpose (laptop).
> > >
> > > Signed-off-by: Jaroslav Kysela <perex at perex.cz>
> > > ---
> > >  sound/pci/hda/patch_realtek.c | 17 +++++++++++++++++
> > >  1 file changed, 17 insertions(+)
> >
> > This patch is now commit d2cd795c4ece ("ALSA: hda - fixup for the bass
> > speaker on Lenovo Carbon X1 7th gen"). There was then followup commit
> > 86353aa70ed0 ("ALSA: hda/realtek - Add quirk for the bass speaker on
> > Lenovo Yoga X1 7th gen").
> 
> Sorry, commit id 86353aa70ed0 is the backport on stable/linux-5.4.y branch,
> mainline id is:
> 54a6a7dc107d ("ALSA: hda/realtek - Add quirk for the bass speaker on Lenovo
> Yoga X1 7th gen")
> 
> >
> > As a result of those, the maximum sound output level on my laptop
> > reduced to ~60% of what it used to be.
> >
> > Moreover, the quirk name is inaccurate. I have a "ThinkPad X1 Carbon
> > 7th" (as confirmed by dmidecode) and its audio device id is:
> >         Subsystem: Lenovo Cannon Point-LP High Definition Audio
> > Controller [17aa:2292] but the patches list:
> > 	SND_PCI_QUIRK(0x17aa, 0x2292, "Thinkpad X1 Yoga 7th",
> ALC285_FIXUP_SPEAKER2_TO_DAC1),
> > 	SND_PCI_QUIRK(0x17aa, 0x2293, "Thinkpad X1 Carbon 7th",
> > ALC295_FIXUP_DISABLE_DAC3), (notice the mixup of id 0x2292).
> >
> > Applying the following diff brings the volume back to previous levels
> > and brings functional volume control:
> >
> > diff --git a/sound/pci/hda/patch_realtek.c
> > b/sound/pci/hda/patch_realtek.c index 68832f52c1ad..ed41e3fb5566
> > 100644
> > --- a/sound/pci/hda/patch_realtek.c
> > +++ b/sound/pci/hda/patch_realtek.c
> > @@ -7260,7 +7260,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[]
> = {
> >  	SND_PCI_QUIRK(0x17aa, 0x224c, "Thinkpad",
> ALC298_FIXUP_TPT470_DOCK),
> >  	SND_PCI_QUIRK(0x17aa, 0x224d, "Thinkpad",
> ALC298_FIXUP_TPT470_DOCK),
> >  	SND_PCI_QUIRK(0x17aa, 0x225d, "Thinkpad T480",
> ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
> > -	SND_PCI_QUIRK(0x17aa, 0x2292, "Thinkpad X1 Yoga 7th",
> ALC285_FIXUP_SPEAKER2_TO_DAC1),
> > +	SND_PCI_QUIRK(0x17aa, 0x2292, "Thinkpad X1 Yoga 7th",
> > +ALC295_FIXUP_DISABLE_DAC3),
> >  	SND_PCI_QUIRK(0x17aa, 0x2293, "Thinkpad X1 Carbon 7th",
> ALC285_FIXUP_SPEAKER2_TO_DAC1),
> >  	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO",
> ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
> >  	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO",
> > ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
> >
> > I can send a patch to fix the problems for my laptop but then I don't
> > know what's up for other devices that built on
> > ALC285_FIXUP_SPEAKER2_TO_DAC1.
> 
> ------Please consider the environment before printing this e-mail.