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: Disable PC beep in passthrough on alc285
Date: Thu, 14 Feb 2019 08:54:24 +0100 [thread overview]
Message-ID: <s5hef8abya7.wl-tiwai@suse.de> (raw)
In-Reply-To: <20190214034133.8164-1-hui.wang@canonical.com>
On Thu, 14 Feb 2019 04:41:33 +0100,
Hui Wang wrote:
>
> It is reported that there's a constant background "hum/whitenoise"
> in the headset on the Lenovo X1 machines with the codec alc285, and it
> is confirmed that if we run the command below, the noise will stop.
> sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
>
> Then I consulted this issue with Kailang, he told me the pin 0x1d on
> this codec is used for PC beep in, the noise probably comes from this
> pin and we can also disable the PC beep in passthrough, then the PC
> beep in will not affect other sound playback.
>
> Fixes: c4cfcf6f4297 ("ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops")
> Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1660581
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Kailang Yang <kailang@realtek.com>
> Signed-off-by: Hui Wang <hui.wang@canonical.com>
Thanks, applied now.
Takashi
prev parent reply other threads:[~2019-02-14 7:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 3:41 [PATCH] ALSA: hda/realtek: Disable PC beep in passthrough on alc285 Hui Wang
2019-02-14 7:54 ` Takashi Iwai [this message]
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