From: Takashi Iwai <tiwai@suse.de>
To: Hui Wang <hui.wang@canonical.com>
Cc: alsa-devel@alsa-project.org, stable@vger.kernel.org
Subject: Re: [PATCH] ALSA: hda/realtek: Headphone volume is controlled by Front mixer
Date: Sat, 22 May 2021 08:49:40 +0200 [thread overview]
Message-ID: <s5hfsyffekb.wl-tiwai@suse.de> (raw)
In-Reply-To: <20210522034741.13415-1-hui.wang@canonical.com>
On Sat, 22 May 2021 05:47:41 +0200,
Hui Wang wrote:
>
> On some ASUS and MSI machines, the audio codec is alc1220 and the
> Headphone is connected to audio mixer 0xf and DAC 0x5, in theory
> the Headphone volume is controlled by DAC 0x5 (Heapdhone Playback
> Volume), but somehow it is controlled by DAC 0x2 (Front Playback
> Volume), maybe this is a defect on the codec alc1220.
>
> Because of this issue, the PA couldn't switch the headphone and
> Lineout correctly, If we apply the quirk CLEVO_P950 to those machines,
> the Lineout and Headphone will share the audio mixer 0xc and DAC 0x2,
> and generate Headphone+LO mixer, then PA could handle them when
> switching between them.
>
> BugLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1206
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Hui Wang <hui.wang@canonical.com>
Thanks, applied.
Takashi
prev parent reply other threads:[~2021-05-22 6:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-22 3:47 [PATCH] ALSA: hda/realtek: Headphone volume is controlled by Front mixer Hui Wang
2021-05-22 6:49 ` Takashi Iwai [this message]
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