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

[Connor McAdams]

Hm.... that's odd. They should show up in the folder you ran the
command from. Does your console show any "DumpMem entered..." or
something like that? You may have a permissions error. I've had some
people report that as an issue before.

On Tue, Sep 11, 2018 at 5:08 PM, Håvard <hovardslill at gmail.com> wrote:
> Hi!
>
> Took a while, but I think I got it working. Did not see any "frame[xx]"
> files though. What dumps do you want?
>
> -Håvard
>
> Den tir. 11. sep. 2018 kl. 21:27 skrev Håvard <hovardslill at gmail.com>:
>>
>> Sorry about that, I forgot to enable a kernel config...
>>
>> -Håvard
>>
>> Den tir. 11. sep. 2018 kl. 21:20 skrev Connor McAdams
>> <conmanx360 at gmail.com>:
>>>
>>> When it's bound as a stub, it shouldn't show up in alsamixer controls.
>>> You can check what module is loaded by doing lspci -v . It should say
>>> kernel driver in use: pci-stub. Also, did you run the vfio-bind script
>>> before trying it?
>>>
>>> On Tue, Sep 11, 2018 at 3:18 PM, Håvard <hovardslill at gmail.com> wrote:
>>> > 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)>]
>>> >> >>> >
>>> >> >>>
>>> >> >>
>>> >> > _______________________________________________
>>> >> > Alsa-devel mailing list
>>> >> > Alsa-devel at alsa-project.org
>>> >> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel