From: Takashi Iwai <tiwai@suse.de>
To: Shahab Ghodsi <shahab16774@gmail.com>
Cc: linux-sound@vger.kernel.org, tiwai@suse.de, kailang@realtek.com
Subject: Re: [PATCH] ALSA: hda/realtek: Add quirk for ASUS ExpertBook B3402FVA
Date: Fri, 23 Oct 2026 15:34:17 +0200 [thread overview]
Message-ID: <87fqxwa6cm.wl-tiwai@suse.de> (raw)
In-Reply-To: <20261022090149.304576-1-shahab16774@gmail.com>
On Thu, 22 Oct 2026 11:01:49 +0200,
Shahab Ghodsi wrote:
>
> The ASUS ExpertBook B3402FVA (PCI SSID 1043:1e03) uses an ALC256
> codec. Headphone output is extremely quiet and distorted, with only
> the loudest parts audible. The BIOS does not enable the headphone
> depop circuit.
>
> Reuse ALC256_FIXUP_ASUS_HPE, which sets COEF 0x0f to 0x7778 to
> enable the headphone depop circuit. This fixup is already used for
> the ASUS TM420 and B1400CEPE.
>
> The COEF write was verified manually with hda-verb on this machine;
> headphones become loud and clear. The chained pin change on 0x19 was
> also applied manually; the headset microphone worked before and after,
> and audio playback was unaffected.
>
> Closes: https://github.com/thesofproject/linux/issues/5996
> Signed-off-by: Shahab Ghodsi <shahab16774@gmail.com>
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2026-10-23 13:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-22 9:01 [PATCH] ALSA: hda/realtek: Add quirk for ASUS ExpertBook B3402FVA Shahab Ghodsi
2026-10-23 13:34 ` Takashi Iwai [this message]
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