Re: [PATCH] ALSA: hda/realtek: Restore headset mic after suspend for Acer Nitro 5

[Takashi Iwai <tiwai@suse.de>]

On Fri, 08 May 2026 23:57:46 +0200,
Breno Baptista wrote:
> 
> The headset mic on the AN515-57 was shown as unplugged after resuming
> from S3/S4, requiring a reboot to recover.
> 
> Signed-off-by: Breno Baptista <brenomb07@gmail.com>
> ---
>  sound/hda/codecs/realtek/alc269.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
> index 11d0ea8ed859..449a5ab3b0d0 100644
> --- a/sound/hda/codecs/realtek/alc269.c
> +++ b/sound/hda/codecs/realtek/alc269.c
> @@ -3578,6 +3578,16 @@ static void alc2xx_fixup_headset_mic(struct hda_codec *codec,
>  		alc_update_coef_idx(codec, 0x45, 0xf<<12 | 1<<10, 5<<12);
>  		spec->parse_flags |= HDA_PINCFG_HEADSET_MIC;
>  		break;
> +	case HDA_FIXUP_ACT_INIT:
> +		/*
> +		 * COEF 0x45 (CTIA combo jack mode) is not preserved across suspend.
> +		 * Restore it before restarting HP JD so the headset is re-detected.
> +		 */
> +		if (is_s3_resume(codec) || is_s4_resume(codec)) {
> +			alc_update_coef_idx(codec, 0x45, 0xf<<12 | 1<<10, 5<<12);
> +			alc_combo_jack_hp_jd_restart(codec);
> +		}
> +		break;
>  	}
>  }

The code change itself looks OK, but I'd like to confirm that it's the
expected behavior.

Kailang, could you verify this please?


thanks,

Takashi