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

Fri Sep 14 17:51:14 CEST 2018

Also,
"Mic" slider in alsamixer with model=alc668-headset does nothing, but "Mic
boost"-slider still works

-Håvard

Den fre. 14. sep. 2018 kl. 17:45 skrev Håvard <hovardslill at gmail.com>:

> Hi! Sorry for late response, was doing school stuff and had problems
> trying to get nvidia drivers on 4.19-rc3 to work.
>
> setting options snd-hda-intel model=alc668-headset
> in /etc/modprobe.d/alsa.conf
> on the 4.18.7-gentoo kernel it changed nothing (exept for the layout in
> alsamixer - that is better).
>
> I checked the source code in sound/pci/hda/patch_realtek.c and there seems
> to be no difference between the code in 4.18.7 and 4.19-rc3
>
> I could try testing more, but I am not good with sound tests without gui.
>
> -Håvard
>
> Den ons. 12. sep. 2018 kl. 23:16 skrev Takashi Iwai <tiwai at suse.de>:
>
>> On Wed, 12 Sep 2018 22:17:14 +0200,
>> Håvard wrote:
>> >
>> > Also,
>> > hda-verb /dev/snd/hwC0D0 0x20 0x500 0xc3 and
>> > hda-verb /dev/snd/hwC0D0 0x20 0x400 0x00
>> > Makes the issue appear again!
>> >
>> > So it seems like 0xc3 toggles it.
>>
>> Good to hear that you nailed it.
>>
>> So this looks like that the alc668 headset mode would work.
>> What happens if you pass model=alc668-headset option with 4.19-rc
>> kernel?  Does it make things working?
>>
>>
>> Takashi
>>
>> >
>> > -Håvard
>> >
>> > Den ons. 12. sep. 2018 kl. 22:14 skrev Håvard <hovardslill at gmail.com>:
>> >
>> > > Can confirm that running:
>> > > hda-verb /dev/snd/hwC0D0 0x20 0x500 0xc3 and
>> > > hda-verb /dev/snd/hwC0D0 0x20 0x440 0x00
>> > > Fixes the issue completely.
>> > >
>> > > Thanks to everyone who helped!
>> > >
>> > > -Håvard
>> > >
>> > > Den ons. 12. sep. 2018 kl. 22:01 skrev Connor McAdams <
>> > > conmanx360 at gmail.com>:
>> > >
>> > >> I might not get around to writing the fix myself, but, here's the
>> > >> COEF's from within Windows. I've marked the ones missing inside the
>> > >> main init function. So, if anyone else wants to add these in, feel
>> > >> free.
>> > >>
>> > >>
>> > >>
>> > >> On Wed, Sep 12, 2018 at 1:16 PM, Håvard <hovardslill at gmail.com>
>> wrote:
>> > >> > That was without running the program (sorry)
>> > >> >
>> > >> > This is output when running program:
>> > >> >
>> > >> > Before there was no "Current verb...."
>> > >> > They came when I opened up windows microphone settings. (something
>> I
>> > >> didn't
>> > >> > do before)
>> > >> >
>> > >> > -Håvard
>> > >> >
>> > >> > Den ons. 12. sep. 2018 kl. 19:11 skrev Håvard <
>> hovardslill at gmail.com>:
>> > >> >>
>> > >> >> I think this is right!
>> > >> >>
>> > >> >> I first booted up, then tested speakers (That I could not hear)
>> and
>> > >> then
>> > >> >> tested microphone (Which worked perfectly) in windows settings.
>> > >> >>
>> > >> >> (My first email was dissaproved as it was too large)
>> > >> >>
>> > >> >> Den ons. 12. sep. 2018 kl. 19:05 skrev Håvard <
>> hovardslill at gmail.com>:
>> > >> >>>
>> > >> >>> I think this is right!
>> > >> >>>
>> > >> >>> I first booted up, then tested speakers (That I could not hear)
>> and
>> > >> then
>> > >> >>> tested microphone (Which worked perfectly) in windows settings.
>> > >> >>>
>> > >> >>> -Håvard
>> > >> >>>
>> > >> >>> Den ons. 12. sep. 2018 kl. 18:49 skrev Connor McAdams
>> > >> >>> <conmanx360 at gmail.com>:
>> > >> >>>>
>> > >> >>>> Also, sorry to keep sending more replies, make sure the only
>> trace
>> > >> you
>> > >> >>>> have on is vfio_region_write, and not the read one. The read
>> spams up
>> > >> >>>> the console.
>> > >> >>>>
>> > >> >>>> On Wed, Sep 12, 2018 at 12:43 PM, Connor McAdams <
>> > >> conmanx360 at gmail.com>
>> > >> >>>> wrote:
>> > >> >>>> > Reason being, it may not have identified the CORB buffer
>> properly
>> > >> or
>> > >> >>>> > something. That's very odd to have no data. Never seen that
>> before.
>> > >> >>>> >
>> > >> >>>> > On Wed, Sep 12, 2018 at 12:42 PM, Connor McAdams
>> > >> >>>> > <conmanx360 at gmail.com> wrote:
>> > >> >>>> >> Could you try again and make a copy of your terminal output?
>> > >> >>>> >>
>> > >> >>>> >> On Wed, Sep 12, 2018 at 12:41 PM, Håvard <
>> hovardslill at gmail.com>
>> > >> >>>> >> wrote:
>> > >> >>>> >>> Hi again.
>> > >> >>>> >>> Sorry for not noticing all files were empty, did it not run
>> for
>> > >> long
>> > >> >>>> >>> enough?
>> > >> >>>> >>>
>> > >> >>>> >>> -Håvard
>> > >> >>>> >>>
>> > >> >>>> >>> Den ons. 12. sep. 2018 kl. 18:39 skrev Håvard
>> > >> >>>> >>> <hovardslill at gmail.com>:
>> > >> >>>> >>>>
>> > >> >>>> >>>> Sorry my bad again it was working perfectly, just missed a
>> step.
>> > >> >>>> >>>>
>> > >> >>>> >>>> I'll add the dumps as an attatchment. I had both external
>> > >> headset
>> > >> >>>> >>>> and
>> > >> >>>> >>>> microphone plugged in and let the VM run in the background
>> for
>> > >> >>>> >>>> ~30min while
>> > >> >>>> >>>> doing other stuff. I did not play music or test my
>> microphone in
>> > >> >>>> >>>> the VM
>> > >> >>>> >>>> either, If i did anything wrong, please tell me!
>> > >> >>>> >>>>
>> > >> >>>> >>>> It stopped at 0x104f4
>> > >> >>>> >>>>
>> > >> >>>> >>>> -Håvard
>> > >> >>>> >>>>
>> > >> >>>> >>>> Den ons. 12. sep. 2018 kl. 00:31 skrev Connor McAdams
>> > >> >>>> >>>> <conmanx360 at gmail.com>:
>> > >> >>>> >>>>>
>> > >> >>>> >>>>> 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
>> > >>
>> > >
>> > [2  <text/html; UTF-8 (quoted-printable)>]
>> >
>>
>