Lenevo Edge 13 internal microphone not working. [, Conexant CX20582 (Pebble), Mic, Internal] No sound at all

[Mal]

As discussed in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/708521, my two Lenovo Edge 13 notebooks appear to have different hardware to those that have been used for testing the driver. The audio device ID (17aa:21b3) is not listed in the file "sound/pci/hda/patch_conexant.c". Various suggested fixes for the internal microphone have not been successful.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kristin 1478 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xd0600000 irq 16'
   Mixer name : 'Conexant CX20582 (Pebble)'
   Components : 'HDA:14f15066,17aa21b3,00100300'
   Controls : 8
   Simple ctrls : 5
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0210000 irq 19'
   Mixer name : 'ATI RS690/780 HDMI'
   Components : 'HDA:1002791a,00791a00,00100000'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6ZHT19WW-1.164000'
   Mixer name : 'ThinkPad EC 6ZHT19WW-1.164000'
   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: Sun May 29 10:12:38 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:SB failed
Symptom_Card: Internal Audio - HDA ATI SB
Symptom_DevicesInUse: 1478
Symptom_Jack: Mic, Internal
Symptom_Type: No sound at all
Title: [, Conexant CX20582 (Pebble), Mic, Internal] No sound at all
UpgradeStatus: Upgraded to natty on 2011-04-22 (36 days ago)
dmi.bios.date: 01/15/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6ZET25WW (1.12 )
dmi.board.name: INVALID
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:bvr6ZET25WW(1.12):bd01/15/2010:svnLENOVO:pn:pvrThinkPad:rvnLENOVO:rnINVALID:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.version: ThinkPad
dmi.sys.vendor: LENOVO

[Luke Yelavich (themuso)]

Thanks for your bug report. If I am reading this report correctly, and the report you linked to, you said you tried various model quirks that didn't work. Did you try either model=asus or model=thinkpad, and did they work at all? If one or more of them worked, what did not work if anything?

Thanks.

[Mal (mal-gamble)]

Luke, in the end, I tried all of the model options that were listed in patch_conexant.c. However, I was not as systematic as I should have been and did not record in detail how each of them performed, partly because the results were inconsistent and variable. Some options initially appeared to give me a working microphone, but later failed after a reboot, or after I ran skype, etc. The symptom that I was seeing was the failure of the microphone to provide any response on the vu meter in the sound preferences dialog. I also noticed that alsamixer did not seem to provide appropriate controls for the microphone, but this varied depending on the chosen model quirk.

I guess to document this properly I would need try each model quirk in turn and put it through a standard set of tests. This could take some time because the two notebooks I am dealing with belong to family members who live elsewhere, so I don't have continuous access to them.

Thanks, Mal.

[Mal (mal-gamble)]

Some additional information:
When I set "model=thinkpad" and rebooted, the microphone seemed to work (level indicator responding in sound preferences), but stopped working as soon as I tried to make a test call in skype. With "model=asus", the microphone did not work at all. I'm happy to try anything else that anyone would like to suggest.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

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