Re: [PATCH] ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671

Hi  Takashi,

if adjusting the mixer element or replugging the headset, the headphone would be unmuted. But most users hope that the default state is unmuted. Should this unconditional unmute be required?

Thanks.

------------------ Original ------------------ From: &nbsp;"Takashi Iwai"<tiwai@suse.de&gt;; Date: &nbsp;Thu, Mar 10, 2022 10:03 PM To: &nbsp;"黄文辉"<huangwenhuia@uniontech.com&gt;; Cc: &nbsp;"perex"<perex@perex.cz&gt;; "tiwai"<tiwai@suse.com&gt;; "jeremy.szu"<jeremy.szu@canonical.com&gt;; "hui.wang"<hui.wang@canonical.com&gt;; "wse"<wse@tuxedocomputers.com&gt;; "cam"<cam@neo-zeon.de&gt;; "kailang"<kailang@realtek.com&gt;; "tanureal"<tanureal@opensource.cirrus.com&gt;; "sami"<sami@loone.fi&gt;; "alsa-devel"<alsa-devel@alsa-project.org&gt;; "linux-kernel"<linux-kernel@vger.kernel.org&gt;; Subject: &nbsp;Re: [PATCH] ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671

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On Thu, 10 Mar 2022 14:58:36 +0100, huangwenhui wrote: &gt; &gt; Hi&nbsp; Takashi, &gt; &gt; Thank you for your reply. &gt; &gt; When booting with plugged headset, the headphone will be muted.

The muted state is the default behavior.&nbsp; Wouldn't it be unmuted if you adjust the corresponding mixer element?

Takashi

&gt; &gt; Thanks. &gt;&nbsp; &gt; ------------------ Original ------------------ &gt; From:&nbsp; "Takashi Iwai"<tiwai@suse.de&gt;; &gt; Date:&nbsp; Thu, Mar 10, 2022 09:29 PM &gt; To:&nbsp; "huangwenhui"<huangwenhuia@uniontech.com&gt;; &gt; Cc:&nbsp; "perex"<perex@perex.cz&gt;; "tiwai"<tiwai@suse.com&gt;; "jeremy.szu" &gt; <jeremy.szu@canonical.com&gt;; "hui.wang"<hui.wang@canonical.com&gt;; "wse" &gt; <wse@tuxedocomputers.com&gt;; "cam"<cam@neo-zeon.de&gt;; "kailang" &gt; <kailang@realtek.com&gt;; "tanureal"<tanureal@opensource.cirrus.com&gt;; "sami" &gt; <sami@loone.fi&gt;; "alsa-devel"<alsa-devel@alsa-project.org&gt;; "linux-kernel" &gt; <linux-kernel@vger.kernel.org&gt;; &gt; Subject:&nbsp; Re: [PATCH] ALSA: hda/realtek - Fix headset mic problem for a HP &gt; machine with alc671 &gt;&nbsp; &gt; On Thu, 10 Mar 2022 14:03:01 +0100, &gt; huangwenhui wrote: &gt; &gt; &gt; &gt; On a HP 288 Pro G8, the front Mic could not be detected. &gt; &gt; &gt; &gt; Signed-off-by: huangwenhui <huangwenhuia@uniontech.com&gt; &gt; &gt; Thanks for the patch.&nbsp; Most of the changes look OK, but one thing I &gt; still don't get: &gt; &gt; &gt; + case HDA_FIXUP_ACT_INIT: &gt; &gt; + alc_write_coef_idx(codec, 0x19, 0xa054); &gt; &gt; + msleep(80); &gt; &gt; + snd_hda_codec_write(codec, hp_pin, 0, &gt; &gt; + &nbsp; &nbsp; AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); &gt; &gt; Why this unconditional unmute is required for fixing the mic problem? &gt; &gt; Takashi &gt; &gt;