Thinkpad Edge 11" (Intel) [Conexant CX20582 (Pebble)] Internal Mic Not Working

[Alan N]

I have a thinkpad edge 11" (intel) which uses the Conexant CX20582 (Pebble) sound chip.

Currently, the internal microphone will not work. Out of the box, the headphones and external mic also have issues but these get solved following directions in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/587388

Following the solution listed in this bug report and setting my /etc/modprobe.d/alsa-base.conf to options snd-hda-intel model="olpc-xo-1_5" the headphone and external microphone seem to work, but the internal microphone seem not to work. The options in alsa-mixer seem not to match the physical hardware layout. My guess is that the configuration of the pebble chip in the laptop is not supported by the drivers yet.

Let me know how else I can help.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion:
 Advanced Linux Sound Architecture Driver Version 1.0.23.
 Compiled on Nov 18 2010 for kernel 2.6.35-22-generic (SMP).
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ahnise 2703 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0700000 irq 48'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:14f15066,17aa21c8,00100302 HDA:80862804,80860101,00100000'
   Controls : 18
   Simple ctrls : 9
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 86HT19WW-1.165000'
   Mixer name : 'ThinkPad EC 86HT19WW-1.165000'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Mon Nov 29 14:33:19 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANG=en_PH.utf8
 SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Conexant CX20582 (Pebble)] Recording problem
dmi.bios.date: 08/10/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 86ET19WW (1.03 )
dmi.board.name: 03282NB
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr86ET19WW(1.03):bd08/10/2010:svnLENOVO:pn03282NB:pvrThinkPadEdge:rvnLENOVO:rn03282NB:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 03282NB
dmi.product.version: ThinkPad Edge
dmi.sys.vendor: LENOVO

[Fabio Marconi (fabiomarconi)]

I subscribe ubuntu-audio-team

[Benjamin Schmid (benbuntu)]

Appending
  options snd-hda-intel model=ideapad
in the file
  /etc/modprobe.d/alsa-base.conf
solved both problems for me on a Thinkpad Edge 11" AMD Neo II K325: Audio Jack and internal mic. working with Skype.

Only the GNOME audio recorder seems to ignore the internal microphone ?!

[Alan N (anise)]

I made these changes and my internal microphone is now working. Thanks Benjamin. Incidently the Gnome "Sound Recorder is working for me. Ben, let me know if you need any info from me to see why yours is not working.

Question is, should Ubuntu automatically setup the alsa-base.conf file as part of install ? If the answer is no, then I think we can close the ticket. If ubuntu should detect the hardware automatically then should a new ticket be created ?

[Alan N (anise)]

Tried to change status to Triaged, but this option was not allowed.. hmmm wonder why ...

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]