Re: no sound on Lenovo Ideapad 110

From	Curt <curty@free.fr>
Newsgroups	linux.debian.user
Subject	Re: no sound on Lenovo Ideapad 110
Date	2017-09-28 14:00 +0200
Message-ID	<uuFDX-8w4-17@gated-at.bofh.it> (permalink)
References	(2 earlier) <utG93-1zp-3@gated-at.bofh.it> <utIaS-2VS-21@gated-at.bofh.it> <utVrr-3yl-1@gated-at.bofh.it> <uuBTM-6bp-41@gated-at.bofh.it> <uuCwr-6Fg-13@gated-at.bofh.it>
Organization	Unorganized

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On 2017-09-28, Pierre Frenkiel <pierre.frenkiel@gmail.com> wrote:
>
>     So, the problem is not with the plug, as generally it must unplugged
>     to get the sound through the speaker.
>

I suppose it is possible that the sensing circuitry or switch (?) in the
headphone jack is faulty or failing so that when you pull the headphone plug
out of the jack socket the audio signal isn't being switched to the speakers,
the plug's absence failing to be detected (or its presence continuing to
be).

I wonder if this hypothesis could be tested in software; it seems you can
do something like

 cat /proc/asound/card1/codec#0 | grep Pin-ctls
(if your sound card is card1 as mine is)

and look for values of "Pin-ctls=in" or "Pin-ctls=out" 

I obtain these values:

  Pin-ctls: 0x40: OUT
  Pin-ctls: 0x20: IN
  Pin-ctls: 0x20: IN
  Pin-ctls: 0x24: IN VREF_80
  Pin-ctls: 0x24: IN VREF_80
  Pin-ctls: 0x20: IN
  Pin-ctls: 0xc0: OUT HP VREF_HIZ
  Pin-ctls: 0x20: IN
  Pin-ctls: 0x20: IN
  Pin-ctls: 0x40: OUT

But they remain the same whether I have my headphones plugged in or not
(I have no speakers).

Anyhow, this is probably a very wild goose chase and a waste of our
precious time.

-- 
"A simpering Bambi narcissist and a thieving, fanatical Albanian dwarf."
Christopher Hitchens, commenting shortly after the nearly concurrent deaths 
of Lady Diana and Mother Theresa.

Thread

no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-25 10:00 +0200
  Re: no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-25 15:20 +0200
    Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-25 20:20 +0200
      Re: no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-25 22:30 +0200
        Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-26 12:40 +0200
          Re: no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-26 14:20 +0200
          Re: no sound on Lenovo Ideapad 110 Jimmy Johnson <field.engineer@gmail.com> - 2017-09-28 10:00 +0200
            Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 10:40 +0200
              Re: no sound on Lenovo Ideapad 110 Curt <curty@free.fr> - 2017-09-28 14:00 +0200
                Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 14:50 +0200
                Re: no sound on Lenovo Ideapad 110 Curt <curty@free.fr> - 2017-09-28 16:40 +0200
                Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 17:40 +0200
                Re: no sound on Lenovo Ideapad 110 Patrick Bartek <nemommxiv@gmail.com> - 2017-09-28 19:20 +0200
                Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 20:40 +0200
                Re: no sound on Lenovo Ideapad 110 Jimmy Johnson <field.engineer@gmail.com> - 2017-09-28 21:50 +0200
                Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 22:30 +0200
                Re: no sound on Lenovo Ideapad 110 Jimmy Johnson <field.engineer@gmail.com> - 2017-09-29 10:50 +0200
                Re: no sound on Lenovo Ideapad 110 Curt <curty@free.fr> - 2017-09-28 22:00 +0200
                Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 22:30 +0200
                Re: no sound on Lenovo Ideapad 110 Patrick Bartek <nemommxiv@gmail.com> - 2017-09-28 23:00 +0200
                Re: no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-28 23:20 +0200
                Re: no sound on Lenovo Ideapad 110 Patrick Bartek <nemommxiv@gmail.com> - 2017-09-29 02:30 +0200
                Re: [solved] no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-29 09:30 +0200
                Re: [solved] no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-29 09:40 +0200
                Re: [solved] no sound on Lenovo Ideapad 110 Greg Wooledge <wooledg@eeg.ccf.org> - 2017-09-29 14:10 +0200
                Re: no sound on Lenovo Ideapad 110 Cindy-Sue Causey <butterflybytes@gmail.com> - 2017-09-29 07:10 +0200
        Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-26 18:10 +0200
          Re: no sound on Lenovo Ideapad 110 "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-09-26 19:10 +0200
      Re: no sound on Lenovo Ideapad 110 davidson <davidson@freevolt.org> - 2017-09-28 15:00 +0200
        Re: no sound on Lenovo Ideapad 110 Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2017-09-28 17:30 +0200

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