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I am running Ubuntu 16.04 LTS on a Macbook Pro. Everything is going great but my internal microphone nor headphones with microphone are being picked up.

I have tried: checking the hardware works on another OS, Alsamixer, PAVU (Pulsa Audio Volume Control all to no avail.

All of these show an internal microphone etc. but dont pick up anything. Is there a driver I need to install perhaps?

Here is this that may help?

 $ cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xa0610000 irq 37

Mainly trying to use in Skype and Discord but don't think that makes a difference

Thanks

Mojo713
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4 Answers4

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I had the same issue with my Macbook air running KDE Neon (ubuntu 18).

Here is what fixed my issue:

1. Added the following line to /etc/modprobe.d/alsa-base.conf

options snd-hda-intel model=mba6

To find the model I first ran:

cat /proc/asound/card*/codec* | grep Codec

Then searched HD-Audio Codec-Specific Models to find the corresponding model.

2. Changed my sound card profile from Analogue Stereo Output to Analogue Stereo Duplex

Check here for an image (I don't have enough reputation)

I also disabled my HDMI sound (top device in picture), though I don't believe this had any effect

3. Reboot!

This worked for me, hopefully this is useful to somebody else.

Based on helpful answers here and here

Doug White
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I was able to fix it by

Adding the following line to the bottom of /etc/modprobe.d/alsa-base.conf: options snd-hda-intel model=mbp101

Mojo713
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    can you please explain what is mbp101 and where did you get it? – Sadegh Alirezaie Apr 03 '19 at 22:53
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    @SadeghAlirezaie Actually, how he got lucky is Mac was a 10,1 or he followed the step of the Doug answer. For me, the answer is mbp81 because my Mac is a version 8,1, Look under your Mac, you will see a number starting with a, such as a1278, then search here: https://everymac.com/ultimate-mac-lookup – JOduMonT May 08 '21 at 02:51
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I did those steps, but under Input Device I still have a Line In (unplugged) while under Output Device it recognize my headset is plugged in.

enter image description here

JOduMonT
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audio capture muted when first installed is good for not having feedback 

alsamixer -c 0 --view capture

use arrow keys and spacebar to select capture and set level.

check for similar changes in Pulseaudio:

pavucontrol -t 3

to make sure settings are saved:

sudo alsactl store

configuration file usually saved to /etc/asound.state

current skype versions have playback and recording via Pulseaudio if left on "Default"

pavucontrol Playback tab should show skype stream for caller and another for sound effects, my system shows that stream with chromium icon.

nik gnomic
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  • hey nik, thanks for trying but i still didnt have luck, does this look correct?

    https://imgur.com/a/gbl9q

    seems like i would want something to show for internal mic?

     – Mojo713 Dec 12 '17 at 00:03
  • agree - would expect to see level control there. and looks like from solution comment you have it sorted out now – nik gnomic Dec 13 '17 at 01:35