[alsa-devel] Issues and/or possible bugs in alsa

[Yomi Ogunwumi]

Sorry, I think this :
*https://gist.github.com/Yomi0/9bfc3e72588cf8a35811#file-alsa-info-without-headphones
<https://gist.github.com/Yomi0/9bfc3e72588cf8a35811#file-alsa-info-without-headphones>
*is
what you wanted.
Headphones are plugged in.

On Wed, Feb 25, 2015 at 2:58 AM, Takashi Iwai <tiwai at suse.de> wrote:

> At Tue, 24 Feb 2015 17:46:09 -0500,
> Yomi Ogunwumi wrote:
> >
> > Hello.
> >
> > I seem to have run into a few issues with alsa.
> >
> > First, when I plug my headphones into my laptop, sound continues to play
> > out of the speakers and doesn't switch over to (or unmute) the
> headphones.
> > Auto-Mute Mode is enabled in alsamixer. The same thing happens when I
> > unplug the headphones, it doesn't switch over to the speakers. I have to
> do
> > the same thing I described above, (no unmuting, I just have to turn up
> the
> > volume for the speakers in alsamixer.)
> >
> > Second. When I plug in these headphones, I can't use the internal
> > microphone on this laptop, it mutes. (AFAICT)
> > These headphones do not have a microphone built in, they're just an
> > ordinary pair of headphones. However, I was given a workaround in #alsa
> on
> > freenode. In order to use the laptop's internal microphone with my
> > headphones plugged in, I have to do : sudo hda-verb /dev/snd/hwC1D0 0x22
> > SET_CONNECT_SEL 6 — it works, but it isn't really ideal.
> >
> > alsa-info is here : https://gist.github.com/Yomi0/9bfc3e72588cf8a35811
> >
> > The first file in that gist is alsa-info with headphones and the second
> is
> > without headphones.
> >
> > Third. This is just a question. Is this :
> > https://bugs.freedesktop.org/show_bug.cgi?id=86676 actually a pulseaudio
> > bug, or is it an issue with alsa?
> > I'm only asking since Raymond linked something that seemed to belong to
> the
> > alsa project.
>
> The alsa-info.sh output above shows the reads from the codec failed.
> Could you try once to disable power-saving?  Set power_save=0 option
> to snd-hda-intel module.
>
> Note that power_save option might be changed dynamically by the system
> (accessible via /sys/module/snd_hda_intel/parameters/power_save).  If
> the problem is still seen, check the value there whether you still
> really have 0 or it was changed by the system.
>
> Restricting the power-save isn't a solution but helps understanding
> the cause, at least.
>
>
> Takashi
>



-- 
*Yomi*