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

[Håvard]

Thank you for the offer!

I run gentoo, but your github guide is very useful. I can't seem to bind my
audio driver to a pci-stud. Is the Sound card still supposed to function as
normal when I (think I) have bound it to a stud.

-Håvard

Den tir. 11. sep. 2018 kl. 20:26 skrev Connor McAdams <conmanx360 at gmail.com
>:

> One thing you could try, is using the program I used to reverse
> engineer the Sound Blaster Z series of cards, QemuHDADump. If your
> processor supports pci-passthrough with a virtual machine, you could
> run a Windows virtual machine with the sound card in it and capture
> the commands. I'd be willing to look through the dumps to see if there
> are any special verbs or anything.
>
> You can find the program here: https://github.com/Conmanx360/QemuHDADump
>
> Let me know.
>
> On Tue, Sep 11, 2018 at 2:15 PM, Håvard <hovardslill at gmail.com> wrote:
> > 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)>]
> >>> >
> >>>
> >>
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