From: Takashi Iwai <tiwai@suse.de>
To: Zhang Heng <zhangheng@kylinos.cn>
Cc: perex@perex.cz, tiwai@suse.com, bo.liu@senarytech.com,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] ALSA: hda: conexant: Remove mic bias threshold override
Date: Mon, 13 Jul 2026 17:04:44 +0200 [thread overview]
Message-ID: <871pd7ylpv.wl-tiwai@suse.de> (raw)
In-Reply-To: <20260713100329.306892-1-zhangheng@kylinos.cn>
On Mon, 13 Jul 2026 12:03:29 +0200,
Zhang Heng wrote:
>
> Remove the mic bias current comparator threshold override (NID 0x1c,
> verb 0x320, value 0x010) from Conexant codec driver.
>
> This override was originally intended to support volume up/down controls on
> headsets with inline remote controls, but it causes microphone detection
> failures on some headsets with impedance less than 1k ohm.
>
> After consulting with the vendor's engineers, it was confirmed that this
> setting is board-specific and should be handled by BIOS/firmware rather
> than the generic codec driver, especially since inline remote support
> is not currently implemented.
>
> Fixes: 7aeb25908648 ("ALSA: hda/conexant: Fix headset auto detect fail in cx8070 and SN6140")
> Cc: stable@vger.kernel.org
> Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2026-07-13 15:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 10:03 [PATCH] ALSA: hda: conexant: Remove mic bias threshold override Zhang Heng
2026-07-13 15:04 ` Takashi Iwai [this message]
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