[alsa-devel] Microphone detected, but no output for all ASUS G751xx with ALC668 chipset

[Håvard]

Sorry, my gmail didn't update so I wrote my response before I read your
last one.

It is a separate mic port as the G751JT doesn't have any headset multijacks.

I'll try and dig around in the kernel! Thanks for the tip!

-Håvard

Den tir. 11. sep. 2018 kl. 20:09 skrev Håvard <hovardslill at gmail.com>:

> Thank you for taking your time and trying to help! :)
>
> Do you know where I can ask around for more help on the issue? I don't
> want to give up yet.
>
> -Håvard
>
> Den tir. 11. sep. 2018 kl. 20:02 skrev Takashi Iwai <tiwai at suse.de>:
>
>> On Tue, 11 Sep 2018 19:14:37 +0200,
>> Håvard wrote:
>> >
>> > Yes, microphone gets detected instantly and it automatically changes to
>> it
>> > in pavucontrol.
>>
>> Then it likely requires some additional initialization outside
>> HD-audio.  It's hard to know, as it's pretty much vendor-specific.
>> You can dig down the Windows, but I have no idea about Windows
>> implementation, so can't give any hints, unfortunately.
>>
>>
>> Takashi
>>
>> >
>> > Den tir. 11. sep. 2018 kl. 18:52 skrev Takashi Iwai <tiwai at suse.de>:
>> >
>> > > On Tue, 11 Sep 2018 18:40:23 +0200,
>> > > Håvard wrote:
>> > > >
>> > > > Thank you for replying!
>> > > >
>> > > > Enabling loopback in alsamixer:
>> > > > http://i.imgur.com/lNo6e7T.png
>> > > >
>> > > > And unmuting more and more things in "Mic Playback Volume" in
>> > > hdaanalyzer:
>> > > > http://i.imgur.com/H0HiOhy.png
>> > > > made white noise come from the headset. However it did not change or
>> > > react
>> > > > at all when I talked or even muted the microphone physically.
>> > > >
>> > > > I couldn't find "Mic Playback Switch" anywhere in either alsamixer
>> or
>> > > > hdaanalyzer.
>> > >
>> > > It's a mixer mute switch.
>> > >
>> > > > The microphone works perfectly fine under Windows, so I don't think
>> it is
>> > > > the mic pin.
>> > >
>> > > But the fact above indicates the possibility of the wrong pin, too.
>> > >
>> > > Does the jack detection of the ext mic pin work?
>> > >
>> > >
>> > > Takashi
>> > >
>> > > >
>> > > > -Håvard
>> > > >
>> > > > Den man. 10. sep. 2018 kl. 22:39 skrev Takashi Iwai <tiwai at suse.de
>> >:
>> > > >
>> > > > > On Thu, 06 Sep 2018 20:44:30 +0200,
>> > > > > Håvard wrote:
>> > > > > >
>> > > > > > Additional relevant info:
>> > > > > >
>> > > > > > A similar issue was also discussed three years ago on Sun Jun
>> > > 17:15:54
>> > > > > CEST
>> > > > > > 2015 and was about his surround sound setup, but did not touch
>> on the
>> > > > > > external microphone problem:
>> > > > > >
>> > > > >
>> > >
>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-June/093317.html
>> > > > > >
>> > > > > > alsa-info.sh:
>> > > > > >
>> > > > >
>> > >
>> http://www.alsa-project.org/db/?f=1d8616ba5977308e03db6c3a86e36e9e9b38d6f0
>> > > > > >
>> > > > > > Graph of ALC668 chipset from hdaanalyzer:
>> > > > > > http://i.imgur.com/c08DNJW.png
>> > > > > >
>> > > > > > setting alsa-mode[1-8] does nothing to help the issue.
>> > > > > >
>> > > > > > There are several of similar bug reports around the web
>> experiencing
>> > > > > > similar issues, and on different distros.
>> > > > > >
>> > > > > > Microphone works perfectly in windows
>> > > > > >
>> > > > > > I have a ASUS ROG G751JT, but this problem seems to happen with
>> all
>> > > > > laptops
>> > > > > > under the G751 name.
>> > > > >
>> > > > > When you enable the loopback volume and switch, and unmute/adjust
>> "Mic
>> > > > > Playback Volume", and "Mic Playback Switch", do you hear the input
>> > > > > from the ext mic?  It's a route directly from NID 0x18 to the
>> mixer
>> > > > > NID 0x0b, then output mixer NID 0x0c, then outputs.  So this can
>> be
>> > > > > used to verify the hardware routing.
>> > > > >
>> > > > > If you don't hear via this route, it means that the input from
>> the ext
>> > > > > mic pin itself is broken, and it implies that something outside
>> > > > > HD-audio codec.
>> > > > >
>> > > > >
>> > > > > Takashi
>> > > > >
>> > > > [2  <text/html; UTF-8 (quoted-printable)>]
>> > > >
>> > >
>> > [2  <text/html; UTF-8 (quoted-printable)>]
>> >
>>
>