Re: [PATCH] ALSA: hda/realtek: Fix the Dell XPS 8940 headset microphone

[Takashi Iwai <tiwai@suse.de>]

On Tue, 03 Nov 2026 16:03:36 +0100,
Angel J wrote:
> 
> The Dell XPS 8940 (1028:09c5) has an ALC3861 codec (0x10ec0899).
> Its BIOS marks the headset microphone pin at NID 0x19 as disconnected
> (0x411111f0). With no external microphone input in the pin configuration,
> the generic parser creates a shared headphone/mic input on NID 0x1b
> instead. Headphone playback works, but the headset microphone is silent.
> 
> Override NID 0x19 as a front microphone without independent presence
> detection. This gives the generic parser the dedicated microphone
> input and preserves NID 0x1b for simultaneous headphone playback.
> 
> I encountered this issue on my XPS 8940. Similar symptoms were also
> reported by a user on Ubuntu:
> https://bugs.launchpad.net/bugs/1971232
> 
> Cc: stable@vger.kernel.org
> Assisted-by: Codex (GPT-6.1 Sol)
> Signed-off-by: Angel J <iamanaws@httpd.dev>

The code change looks OK, but could you resubmit with a proper
Signed-off-by tag with your full name (also From tag, too)?
Signed-off-by is a legal requirement.


thanks,

Takashi