RE: [PATCH] ALSA: hda/cs35l41: Add DSD property override for ASUS UX3405CA

Hi Takashi,

Unfortunately, this does not look like an ACPI issue.
This laptop is an external boost laptop, but this patch is changing the
properties to redefine it as internal boost.
This could cause issues with the amplifiers.

It looks like speaker protection is kicking in after 1s, but I don't know
why.
I recommend the OP create a BugZilla so we can investigate this separately.
I also recommend we do not take this patch, as it might damage this laptop.

Thanks,
Stefan

> -----Original Message-----
> From: Takashi Iwai <[email protected]>
> Sent: Thursday, August 6, 2026 10:46 AM
> To: [email protected]
> Cc: Gemayel Lira <[email protected]>; [email protected]
> Subject: Re: [PATCH] ALSA: hda/cs35l41: Add DSD property override for ASUS
> UX3405CA
> 
> On Sun, 02 Aug 2026 01:00:22 +0200,
> Gemayel Lira wrote:
> >
> >
> > The ASUS Zenbook 14 UX3405CA (SSID 1043:1A63) has internal CS35L41
> > amplifiers, but was using the missing_speaker_id_gpio2 fallback entry.
> > This caused the right speaker channel to bind with VSPK voltage switch
> > disabled
> > (VSPK: 0), leading to a volume drop ~1 second after starting playback
> > due to power imbalance protection.
> >
> > Add an explicit entry for 10431A63 in cs35l41_config_table with
> > internal boost type, 4500mA peak current, and switch its model mapping
to
> generic_dsd_config.
> > This resolves the volume drop issue and enables proper internal boost
> > for both channels.
> >
> > Pull Request on SOF Project:
> > https://github.com/thesofproject/linux/pull/5866
> >
> > Signed-off-by: Gemayel Lira <[email protected]>
> >
> > From 10431A6300000000000000000000000000000000 Mon Sep 17
> 00:00:00 2001
> > From: Gemayel Lira <[email protected]>
> > Date: Sat, 1 Aug 2026 19:15:00 -0300
> > Subject: [PATCH] ALSA: hda/cs35l41: Add DSD property override for ASUS
> > UX3405CA
> >
> > The ASUS Zenbook 14 UX3405CA (SSID 1043:1A63) has internal CS35L41
> > amplifiers, but was using the `missing_speaker_id_gpio2` fallback entry.
> > This caused the right speaker channel to bind with VSPK voltage switch
> > disabled
> > (VSPK: 0), leading to a volume drop ~1 second after starting playback
> > due to power imbalance protection.
> >
> > Add an explicit entry for 10431A63 in cs35l41_config_table with
> > internal boost type, 4500mA peak current, and switch its model mapping
to
> `generic_dsd_config`.
> > This resolves the volume drop issue and enables proper internal boost
for
> both channels.
> >
> > Signed-off-by: Gemayel Lira <[email protected]>
> 
> Stefan, is this also covered in your side?
> Or shall we just take this?
> 
> 
> BTW, Gemayel, at the next time, please submit to linux-
> [email protected].  It's the place for kernel patches, while
alsa-devel ML is
> mostly for only user-space stuff.
> 
> 
> thanks,
> 
> Takashi
> 
> 
> > ---
> >  sound/hda/codecs/side-codecs/cs35l41_hda_property.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
> > b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
> > index 416d7bf..1cf12f8 100644
> > --- a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
> > +++ b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
> > @@ -104,6 +104,7 @@ static const struct cs35l41_config
> cs35l41_config_table[] = {
> >  	{ "104317F3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 0, 1, -1, 1000, 4500, 24 },
> >  	{ "10431863", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 1, 2, 0, 1000, 4500, 24 },
> >  	{ "104318D3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 0,
> > 1, -1, 0, 0, 0 },
> > +	{ "10431A63", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> > +-1, 2, -1, 1000, 4500, 24 },
> >  	{ "10431A83", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 0, 1, -1, 1000, 4500, 24 },
> >  	{ "10431B93", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 1, 2, 0, 1000, 4500, 24 },
> >  	{ "10431C9F", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 },
> 1,
> > 2, 0, 1000, 4500, 24 }, @@ -530,7 +531,7 @@ static const struct
> cs35l41_prop_model cs35l41_prop_model_table[] = {
> >  	{ "CSC3551", "104317F3", generic_dsd_config },
> >  	{ "CSC3551", "10431863", generic_dsd_config },
> >  	{ "CSC3551", "104318D3", generic_dsd_config },
> > -	{ "CSC3551", "10431A63", missing_speaker_id_gpio2 },
> > +	{ "CSC3551", "10431A63", generic_dsd_config },
> >  	{ "CSC3551", "10431A83", generic_dsd_config },
> >  	{ "CSC3551", "10431B93", generic_dsd_config },
> >  	{ "CSC3551", "10431C9F", generic_dsd_config },
> > --
> > 2.43.0