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I have recently installed Ubuntu 22.04.4 LTS on my MacBook pro 10.02 and noticed that the microphone is not working. It does not matter if I try to use the built-in (internal) microphone, or if I plug in a headset (jack), or use a bluetooth headset. The sound settings give me the option to select given microphone as input, however the selected microphone does not work. I have spent quite some time googling and looking for a solution but nothing so far worked.

Symptoms:

Microphone does not detect any sound. It does not matter what microphone I try to use (internal, headset..).

Here is, what I tried:

  1. Checking the Sound Settings in Ubuntu and making sure the input device is selected and not muted.
  2. Adding options snd-hda-intel model=mbp102 to /etc/modprobe.d/alsa-base.conf
  3. Making sure that "Analog Stereo Duplex" is selected in pavucontrol (configuration panel).
  4. Using alsamixer and increasing the microphone's gain
  5. Connecting unconnected pins using hdajackretask as suggested here
  6. Reinstalling pulseaudio
  7. Booting into different live ubuntu distros (18.04, and 22.04) - the issue prevails.

System info:

sudo aplay -l

card 0: PCH [HDA Intel PCH], device 0: CS4206 Analog [CS4206 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: CS4206 Digital [CS4206 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

sudo lshw -class multimedia

       description: Video
       product: FaceTime HD Camera (Built-in)
       vendor: Apple Inc.
       physical id: 1
       bus info: usb@2:1.1
       version: 80.25
       serial: CC2D3L0LGDDN9KB0
       capabilities: usb-2.00
       configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
  *-multimedia
       description: Audio device
       product: 7 Series/C216 Chipset Family High Definition Audio Controller
       vendor: Intel Corporation
       physical id: 1b
       bus info: pci@0000:00:1b.0
       logical name: card0
       logical name: /dev/snd/controlC0
       logical name: /dev/snd/hwC0D0
       logical name: /dev/snd/hwC0D3
       logical name: /dev/snd/pcmC0D0c
       logical name: /dev/snd/pcmC0D0p
       logical name: /dev/snd/pcmC0D1p
       logical name: /dev/snd/pcmC0D3p
       logical name: /dev/snd/pcmC0D7p
       logical name: /dev/snd/pcmC0D8p
       version: 04
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=snd_hda_intel latency=0
       resources: irq:53 memory:a0610000-a0613fff`

lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.4 LTS
Release:    22.04
Codename:   jammy

lspci | grep -i audio

00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)

Any ideas or advice on what else I might try are more than welcome and highly appreciated! I am also happy to share any further details if necessary.

0 Answers0