linux-kernel - Re: Lenovo P50 headphone issue

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Date:   Fri, 9 Oct 2020 11:36:56 +0200
From:   Fabio Coatti <fabio.coatti@...il.com>
To:     Hui Wang <hui.wang@...onical.com>, oder_chiou@...ltek.com
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: Lenovo P50 headphone issue

Thanks,
I opened a bugzilla entry here:
https://bugzilla.kernel.org/show_bug.cgi?id=209595
and CC'ed current realtek maintainer.

Many thanks for the suggestion.

Il giorno ven 9 ott 2020 alle ore 10:06 Hui Wang
<hui.wang@...onical.com> ha scritto:
>
> Hi Fabio,
>
> Looks like the P50 has a different codec, it is alc298, and I don't have
> the P50 to debug. It is better to report a bug to bugzilla against the
> upstream kernel and cc the realtek engineers to take a look.
>
> Regards,
>
> Hui.
>
> On 2020/10/9 下午3:14, Fabio Coatti wrote:
> > Hi All,
> > I'm experiencing issues with a Lenovo P50 regarding headphones. It has
> > some similarities with the issue fixed in 5.8.13 with
> > commit ad0643252831ede7d6ab7b70a4f03768e032e6b4
> > Author: Hui Wang <hui.wang@...onical.com>
> > Date:   Mon Sep 14 14:51:18 2020 +0800
> >
> >      ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged
> >
> > I've been seeing this behavior since some time and now I'm running 5.8.14
> > Description: sometimes when I start the laptop with headphones plugged
> > in, no sound comes out of the headphones. The only thing I can hear is
> > the "usual" click when the kernel boots. Sound config in the gui
> > reports headphones plugged, nothing seems really wrong but no sound.
> > Removing headphones does not help: sound can be heard from laptop
> > loudspeakers but  to get back the sound on headphones I have to unplug
> > the jack, reboot the laptop and once booted, inserting the headphones
> > makes everything work as  expected. Gui tools report everything as
> > expected: headphones inserted, volume is ok and so on.
> > Below you can find the dmesg boot messages related to sound devices.
> > If you need more details please let me know.
> > If I picked the wrong address to report the issue please let me know,
> > I'll try to contact the relevant sources.
> > Please note that I'm not subscribed to this list even though I monitor
> > it, so being in CC: will be really appreciated.
> > Many thanks for any answer.
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:
> > autoconfig for ALC298: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:
> > speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:
> > hp_outs=2 (0x17/0x21/0x0/0x0/0x0)
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:    mono:
> > mono_out=0x0
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:    inputs:
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x18
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:      Dock Mic=0x19
> > [Fri Oct  9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0:
> > Internal Mic=0x12
> > [Fri Oct  9 08:20:05 2020] videodev: Linux video capture interface: v2.00
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=3 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=7 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=8 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=9 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=10 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19
> > [Fri Oct  9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=11 as
> > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input20
> > [Fri Oct  9 08:20:05 2020] input: HDA Intel PCH Mic as
> > /devices/pci0000:00/0000:00:1f.3/sound/card0/input22
> > [Fri Oct  9 08:20:05 2020] input: HDA Intel PCH Dock Mic as
> > /devices/pci0000:00/0000:00:1f.3/sound/card0/input23
> > [Fri Oct  9 08:20:05 2020] input: HDA Intel PCH Dock Headphone as
> > /devices/pci0000:00/0000:00:1f.3/sound/card0/input24
> > [Fri Oct  9 08:20:05 2020] input: HDA Intel PCH Headphone as
> > /devices/pci0000:00/0000:00:1f.3/sound/card0/input25
> > --
> > Fabio



-- 
Fabio