Re: equest to upstream: ALC287_FIXUP_TXNW2781_I2C quirk for ASUS Strix Gxx5 family (CachyOS commit 20313d76)

[Takashi Iwai <tiwai@suse.de>]

On Wed, 13 May 2026 11:24:00 +0200,
Eric Naim wrote:
> 
> On 5/12/26 9:50 PM, Rob Blake wrote:
> > Hi all,
> > 
> > I'm writing to ask whether the small fixup-table change below can be picked up
> > for mainline. It's already in CachyOS's downstream tree since 2026-03-06 and
> > is reported to restore speaker audio on an
> > entire family of recent ASUS ROG Strix laptops, including mine.
> > 
> > The relevant commit is by Eric Naim <dnaim@cachyos.org>:
> > 
> >   CachyOS commit 20313d767be2e5abdb88295b7c724634e1937a4f
> >   "ALSA: hda/realtek: Use ALC287_FIXUP_TXNW2781_I2C for ASUS Strix Gxx5"
> > https://github.com/CachyOS/linux/commit/20313d767be2e5abdb88295b7c724634e1937a4f
> > 
> > The change is a six-line edit to sound/hda/codecs/realtek/alc269.c: the
> > affected SSIDs are currently mapped to ALC287_FIXUP_TAS2781_I2C but actually
> > need ALC287_FIXUP_TXNW2781_I2C. The wrong quirk leaves the I²C interrupt
> > config inconsistent with the ACPI TXNW2781 entry, so serial-multi-instantiate
> > fails to resolve IRQ index 0 for each of the three amp channels, and only the
> > first channel binds.
> > 
> > SSIDs affected (per Eric's patch):
> >   0x1043 0x3ee0  ASUS Strix G815_JHR_JMR_JPR
> >   0x1043 0x3ef0  ASUS Strix G635LR_LW_LX
> >   0x1043 0x3f00  ASUS Strix G815LH_LM_LP
> >   0x1043 0x3f10  ASUS Strix G835LR_LW_LX
> >   0x1043 0x3f20  ASUS Strix G615LR_LW   <-- my machine
> >   0x1043 0x3f30  ASUS Strix G815LR_LW
> > 
> > On my G615LW (SSID 1043:3f20) running kernel 6.19.14-101.fc44, the
> > broken state matches Eric's commit log exactly:
> > 
> >   Serial bus multi instantiate pseudo device driver TXNW2781:00: error -ENXIO:
> > IRQ index 0 not found
> >   Serial bus multi instantiate pseudo device driver TXNW2781:00: error -ENXIO:
> > IRQ index 0 not found
> >   Serial bus multi instantiate pseudo device driver TXNW2781:00: error -ENXIO:
> > IRQ index 0 not found
> >   Serial bus multi instantiate pseudo device driver TXNW2781:00: Instantiated
> > 3 I2C devices.
> > 
> > with .0 binding to tas2781-hda and .1/.2 staying at driver=NONE.
> > Speakers are silent. Headphones work (they're on a separate codec pin and
> > don't involve TAS2781).
> > 
> > I've ruled out asusd as the cause — I rebooted with asusd masked and the
> > failure is identical, so this is purely codec-quirk-table business.
> > 
> > Original upstream report:
> > https://lore.kernel.org/
> > CACB9z7kjs8rhLstEc8fV29BCTb5dd881JwGozoKdO5cwCb=YwQ@mail.gmail.com
> > 
> > CachyOS issue with discussion:
> >   https://github.com/CachyOS/linux-cachyos/issues/752
> > 
> > I'm not a kernel developer and don't feel qualified to submit Eric's patch on
> > his behalf. Could one of you (or Eric, if you're on this list) take a look and
> > consider sending it for inclusion? It's a self-contained six-line change that
> > fixes audio for a sizeable family of shipping laptops, and the patch is
> > already authored and signed-off.
> > 
> > Happy to test patches against my G615LW.
> > 
> > Thanks,
> > 
> > Rob
> > 
> 
> Hi Rob,
> 
> I've sent this patch 2 months ago [1]. I never got a reply from Baojun so I
> myself am unsure as to how to proceed, cc'ing them here to hopefully get a reply.
> 
> [1] https://lore.kernel.org/linux-sound/20260315160939.191265-1-dnaim@cachyos.org/

Indeed.  If no further followup appears, I'm going to pick up Eric's
v2 patch in the next week.


thanks,

Takashi