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[Bug 1046412] Re: [tegra-alc5632 - tegra-alc5632, recording] The default settings should allow recording, or it should be easy to configure

 

Ubuntu for ac100 uses ucm config (placed in /usr/share/alsa/ucm/) for audio device (thanks to ogra!).
So I suppose we just need to add few lines to the config to enable internal mic (dmic):
                cset "name='DMIC En Capture Switch' on"
                cset "name='DMIC PreFilter Capture Switch' on"
                cset "name='DMICL Mix DMICL2ADC Capture Switch' on"
                cset "name='I2SOut Mux' 'ADC LR'"
                cset "name='DMIC Boost Volume' 100,100"
                cset "name='Rec Capture Volume' 100,100"
I'm not sure about Volume values (I don't have my ac100 with me and can't check what values are good  -  very high values can produse noise).

Useful links:
http://ac100.wikispaces.com/alsa_ucm
http://ac100.grandou.net/mixer_settings#recording_sound_from_integrated_dmic

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https://bugs.launchpad.net/bugs/1046412

Title:
  [tegra-alc5632 - tegra-alc5632, recording] The default settings should
  allow recording, or it should be easy to configure

Status in Enablement project for the Toshiba AC100 NetBook:
  New
Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  I've installed Ubuntu 12.04 for Toshiba AC100.
  My history is described here -- https://answers.launchpad.net/ac100/+question/207758 :

  before turned on a lot of switches in alsamixer, no sound could be
  recorded.

  I couldn't turn capturing the sound on through the sound settings menu
  in the panel.

  I suggest that either the default settings allow recording, or there
  is a simple way to switch it on through the settings menu (without
  having to look at a whole lot of switches in alsamixer, not
  understanding their meaning).

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  Uname: Linux 3.0.27-1-ac100 armv7l
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: tegraalc5632 [tegra-alc5632], device 0: ALC5632 PCM alc5632-hifi-0 []
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: armhf
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: tegraalc5632 [tegra-alc5632], device 0: ALC5632 PCM alc5632-hifi-0 []
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  imz        2410 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'tegraalc5632'/'tegra-alc5632'
     Mixer name	: ''
     Components	: ''
     Controls      : 67
     Simple ctrls  : 62
  Date: Thu Sep  6 02:59:56 2012
  PackageArchitecture: all
  PciMultimedia:
   
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaRecordingTest: ALSA recording test through plughw:tegraalc5632 failed
  Symptom_Card: tegra-alc5632 - tegra-alc5632
  Symptom_DevicesInUse:
   2410/dev/snd/controlC0:  imz       F.... pulseaudio
   AND
  Symptom_Type: No sound at all
  Title: [tegra-alc5632 - tegra-alc5632, recording] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)

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