Sound capture (microphone) works on LiveCD, but don't work after installation

[Leo]

Binary package hint: pulseaudio

Hello!
I have started my notebook AcerAspire 5110 with liveCD ubuntu-9.10-rc-desktop-amd64.iso. There was internal and external microphones works. After installation any microphone doesn't work. Sound output works correct internal and external (headphones) at LiveCD and after installation.
Sound configuration at LiveCD and after installation is different?

ProblemType: Bug
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: leo 1553 F.... pulseaudio
 /dev/snd/pcmC0D0p: leo 1553 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xf8400000 irq 16'
   Mixer name : 'Realtek ALC883'
   Components : 'HDA:10ec0883,1025009f,00100002 HDA:14f12bfa,1025009f,00090000'
   Controls : 23
   Simple ctrls : 13
Date: Sun Oct 25 13:23:19 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/pulseaudio
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate amd64 (20091020.3)
Package: pulseaudio 1:0.9.19-0ubuntu3
ProcEnviron:
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-14-generic x86_64

Workaround:
In file /etc/modprobe.d/alsa-base.conf
add string:
options snd-hda-intel position_fix=1,
and restart.

[Luke Yelavich (themuso)]

It seems that the input volume settings for your microphone devices are turned down. I suggest you go into the volume control preferences and unmute/turn the microphone volume up.

[Leo (llenchikk)]

I do it. Also I try all profiles into Volume Control Settings. Monitor of external noise don't show anything. But at LiveCD all work. Screenshot of sound input are attached.

[Leo (llenchikk)]

I have compared settings in alsamixer. All settings are identical. And there are: if boot from LiveCD capture work (Sound Recorder, Skype), if boot from hard disc capture don't work. I nave installed all updates today. Which sound settings I can check else?

[Daniel T Chen (crimsun)]

Please dump 'amixer' from the live cd and 'amixer' from your install.

On Oct 26, 2009 2:10 PM, "Leo" <email address hidden> wrote:

I have compared settings in alsamixer. All settings are identical. And
there are: if boot from LiveCD capture work (Sound Recorder, Skype), if
boot from hard disc capture don't work. I nave installed all updates
today. Which sound settings I can check else?

-- Sound capture (microphone) works on LiveCD, but don't work after
installation https://bugs.laun...

[Leo (llenchikk)]

Ok! I'm not shure how to make dump. I just type 'amixer' at command line. Is it correct?
There are files in attachment.

[RayArdia (theallinsons)]

My questions about audio on Skype (see Re: HOWTO: PulseAudio Fixes & System-Wide Equalizer Support) seem very similar to Leo's comments above, and although there are some slight differences in the Terminal output produced by command 'amixer', in general I think my problems are the same as his.
I did not use the Live CD to get Karmic - I did an upgrade, but the end result appears similar.
In order to assist (rather than hinder!) this bug report what should I do? Would my 'amixer' results help at all? Anything else?

[Leo (llenchikk)]

RayArdia, I think that pulseaudio or alsa have different settings on LiveCD and right after installation. If it's true, I want to find it.
Possible there is different between initialisation process on LiveCD and on hard disc.
Maybe you should try boot from LiveCD, and look what will be work and what will not?

[Leo (llenchikk)]

I upgrade pulseaudio to version 0.9.20 from ppa:ubuntu-audio-dev/ppa. And there is no changes. Sound capture don't work. With pulseaudio version 0.9.19 on LiveCD and boot from LiveCD it still work.

[Daniel T Chen (crimsun)]

Your amixer output is very odd. You should not be capturing anything
given these mixer settings from your live cd boot:

Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ zeroed, muted

Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%]
  Front Right: 0 [0%]
^^^^^^^^^^^^^^^^^^^^ zeroed

Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 0 [0%] [-12.00dB] [on]
  Front Right: Capture 0 [0%] [-12.00dB] [on]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ zeroed

Is this snapshot done before or after recording something?

[Leo (llenchikk)]

Now I boot from LiveCD.
1) I did not do anything with sound preferences. File: amixer_LiveCD_boot.txt.

2) I started gnome-sound-recorder, record my voice, and I heared it when press "play" button at the program. Capture worked. File: gnome_sound_recorder_LiveCD.txt

3) I change mic sensitivity to Up at sound preferences. File: amixer_LiveCD_boot_record_micUP.txt.

4) I mute mic at sound preferences. File: amixer_LiveCD_boot_record_micMUTE.txt

There are different parts at amixer snapshots:
1) File: amixer_LiveCD_boot.txt
...
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 0 [0%] [-12.00dB] [on]
  Front Right: Capture 0 [0%] [-12.00dB] [on]
...

2) File: amixer_LiveCD_boot_record_micUP.txt
...
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 27 [87%] [28.50dB] [on]
  Front Right: Capture 27 [87%] [28.50dB] [on]
...

3) File: amixer_LiveCD_boot_record_micMUTE.txt
...
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 27 [87%] [28.50dB] [off]
  Front Right: Capture 27 [87%] [28.50dB] [off]
...

[Leo (llenchikk)]

There is amixer snapshot from installed system. Capture don't work.

[Leo (llenchikk)]

Pulseaudio version 0.9.21. Capture don't work on installed system.

[Leo (llenchikk)]

I can assume, maybe any root previlegions (rights) to sound hardware are different (when boot from LiveCD and then boot from installed system). How can I check it? I add user "leo" to the groups "pulse", "pulse-access" and "audio". It doesn't help.

[bxcrx (shon-nyitg)]

I can confirm the same problem with my machine running 9.10 Karmic Koala from a fresh install. The microphone worked in version 9.04.

When I boot the computer up from the LiveCD the analog (non-usb) microphone works, and when I boot from the hard drive it does not work.

My volume settings were identical under my "Sound Preferences" when comparing the LiveCD and O/S booted from the hard drive.

I even tried installing the following packages (below) after some users reported that this would work.

linux-backports-modules-alsa-2.6.31-15-generic <= didn't work
linux-backports-modules-alsa-karmic <= didn't work
pulseaudio paman pavumeter<= didn't work

I'll try to get some debugs once I get in front of it at the end of this week hopefully

[bxcrx (shon-nyitg)]

Here is my amixer output from amixer booted from the HD.

In "alsamixer" I can't turn on mic boost on , but I can adjust the microphone volume.

desktop:~$ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [0.00dB] [on]
  Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Master Mono',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control '3D Control - Center',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [0.00dB] [on]
  Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Surround Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Surround Jack Mode',0
  Capabilities: enum
  Items: 'Shared' 'Independent'
  Item0: 'Shared'
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Center/LFE Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 25 [81%] [3.00dB] [on] Capture [off]
  Front Right: Playback 25 [81%] [3.00dB] [on] Capture [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive gr...

[bxcrx (shon-nyitg)]

Here is my "amixer" output when using Sound Recorder from the Live 9.10 CD, which works.

amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 25 [81%] [-9.00dB] [on]
  Front Right: Playback 25 [81%] [-9.00dB] [on]
Simple mixer control 'Master Mono',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control '3D Control - Center',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 25 [81%] [3.00dB] [on]
  Front Right: Playback 25 [81%] [3.00dB] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-46.50dB] [off]
  Front Right: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Surround Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Surround Jack Mode',0
  Capabilities: enum
  Items: 'Shared' 'Independent'
  Item0: 'Shared'
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [off]
Simple mixer control 'Center/LFE Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 25 [81%] [3.00dB] [on] Capture [off]
  Front Right: Playback 25 [81%] [3.00dB] [on] Capture [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Mono
  Capture channels: Front Left - Front Rig...

[bxcrx (shon-nyitg)]

The microphone is labelled off in "alsamixer" when booted from the 9.10 LiveCD, and I can't turn on or off the micboost either.

[Dragan Suminovski (dragangv)]

I had the same problem with my laptop Acer Aspire 5100

solution:

cat /proc/asound/card0/codec#* | grep Codec

you will see your sound card model, in my case output was

Codec: Realtek ALC883

open file:

sudo gedit /etc/modprobe.d/alsa-base.conf

modify line which starts with

options snd-hda-intel xxx

in that way that you will add your sound card model model=your_model

in my case I did this:

options snd-hda-intel xxx

bacame

options snd-hda-intel xxx model=ALC883

save and reboot

it should work

Note: xxx means other settings :) just in case

[Daniel T Chen (crimsun)]

No, please, that is *not* how quirks work, Dragan.

[Dragan Suminovski (dragangv)]

To Daniel T Chen

Frankly I do not really know why it worked maybe it is some module load options but it worked for me. I have tried many things to make the microphone working but all were unsuccessful.

If you have some explanation of why this thing worked for me please post it I will be very thankful.

[Daniel T Chen (crimsun)]

Dragan, quirks do not necessarily follow the model name string in the codec.
The only definitive list of quirks is in the source code.

On Dec 8, 2009 4:41 AM, "Dragan Suminovski" <email address hidden> wrote:

To Daniel T Chen

Frankly I do not really know why it worked maybe it is some module load
options but it worked for me. I have tried many things to make the
microphone working but all were unsuccessful.

If you have some explanation of why this thing worked for me please post
it I will be very thankful.

-- Sound capture (microphone) works on LiveCD, but don't work after
installation https://bugs.laun...
Status in PulseAudio sound server: Unknown

Status in “pulseaudio” package in Ubuntu: New Bug description: Binary
package hint: pulseaudio Hel...

[pdan (pdanrazvan)]

It seems my issue is similar with this one.
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/489900

[Rykel from Singapore (rykel98)]

just to let you guys know, my microphone is also NOT working, and adding the "model" to the last line did NOT solve the problem either.

Thanks!!

[Rykel from Singapore (rykel98)]

Sorry, I should add that I am using an ASUS EeePC 4G with the built-in internal microphone running Ubuntu Karmic and Pulseaudio.

Is there a way I can "factory reset" Pulseaudio and then have Ubuntu "rescan-reconfigure" my soundcard?

I have another open bug somewhere here on this very i9ssue too.

Thanks for advice!!

[bxcrx (shon-nyitg)]

In alsamixer I went over to where it said "mic" and hit "m" to make the square turn green making the inside lettering go white. This apparently unmuted my microphone.

There-after odd thing is if I use "Sound Recorder" or even Mangler from http://www.mangler.org/

I can hear myself through my speakers, but the sound never travels to my applications that need it.

I upgrade myself to the lastest version of Pulseaudio still with no fix.

The microphone still only works when using the LiveCD.

The logs I've attached to this comment pertain to my computer when booted from the LiveCD

[bxcrx (shon-nyitg)]

lsmod when booted from LiveCD (Mic works)

[bxcrx (shon-nyitg)]

amixer when booted from LiveCD (Mic works)

[bxcrx (shon-nyitg)]

grepcodec when booted from LiveCD (Mic works)

[Leo (llenchikk)]

I upgrade linux kernel to 2.6.32-7. The microphone still don't work, but it works when using the LiveCD.

[pdan (pdanrazvan)]

bxcrx's solution above fixed my front mic problem. everything seems fine now.
"In alsamixer I went over to where it said "mic" and hit "m" to make the square turn green making the inside lettering go white. This apparently unmuted my microphone."

[Leo (llenchikk)]

Pdan, I make it too. It don't help.

[Domel (peter.domanski)]

Adding "model=auto" to the last line of /etc/modprobe.d/alsa-base.conf fixed the microphone problem for me, but now my audio output goes out to both built in speakers and headphones (when plugged in) at the same time. It does not switch between two of them when i plug in or unplug the headphones.

[Daniel T Chen (crimsun)]

Domel, please file a separate bug report.

[bxcrx (shon-nyitg)]

I'm running:

Pulse Audio v 0.9.21
Alsa v 1.0.20 (Stock with 9.10)

I got my microphone to work finally, probably from messing with alsamixer, but there are some lingering issues that I'm still watching.

After everything was working as it should I had to save my alsamixer settings via:

sudo alsactl store 0

After a restart my gnome volume would be muted so I had to do the following:

I commented out line 372 in /etc/init.d/alsa-utils:

# mute_and_zero_levels "$TARGET_CARD" || EXITSTATUS=1

Also my input settings for my microphone in the Gnome Sound Preferences sometimes has a check box in "muted" that I have to remove after a restart sometimes -- I'm still tracking that down

Here is my working alsamixer settings :

Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 28 [90%] [-4.50dB] [on]
  Front Right: Playback 28 [90%] [-4.50dB] [on]
Simple mixer control 'Master Mono',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [off]
Simple mixer control '3D Control - Center',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 23 [74%] [0.00dB] [on]
  Front Right: Playback 23 [74%] [0.00dB] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [0.00dB] [on]
  Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Surround Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Surround Jack Mode',0
  Capabilities: enum
  Items: 'Shared' 'Independent'
  Item0: 'Shared'
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Center/LFE Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 30 [97%] [10.50dB] [on] Capture [off]
  Front R...

[defaria (andrew-defaria)]

I have this problem on my desktop - I can hear myself talking through the mic but nothing records in Sound Recorder nor does the mic work for Skype. Works when booted from LiveCD, doesn't work when booted from the hard drive. The difference AFAICT is that somewhere along the line a new sound driver was installed because when booted from the LiveCD I have only a stereo card but when booted from the hard drive I have the full 5.1 controls. My guess is that the sound driver is at fault here. How does on tell what driver is installed and possibly install a newer version.

$ lspci -vv | grep Audio
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
$ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 19818 [30%] [on]
  Front Right: Playback 19818 [30%] [on]
  Rear Left: Playback 19818 [30%] [on]
  Rear Right: Playback 19818 [30%] [on]
  Front Center: Playback 19818 [30%] [on]
  Woofer: Playback 19818 [30%] [on]
  Side Left: Playback 19818 [30%] [on]
  Side Right: Playback 19818 [30%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right
  Limits: Capture 0 - 65536
  Front Left: Capture 65536 [100%] [on]
  Front Right: Capture 65536 [100%] [on]
  Rear Left: Capture 65536 [100%] [on]
  Rear Right: Capture 65536 [100%] [on]
  Front Center: Capture 65536 [100%] [on]
  Woofer: Capture 65536 [100%] [on]
  Side Left: Capture 65536 [100%] [on]
  Side Right: Capture 65536 [100%] [on]

Any ideas?

[Domel (peter.domanski)]

~Daniel T Chen

I've submitted a separate bug report #502223 and after some troubleshooting I was referred back to this bug report as it looks to be related.

[Leo (llenchikk)]

I booted Lucid live CD. Sound capture works.
Which information I can give else to traige this bug?

[Leo (llenchikk)]

I install Ubuntu 10.04 alpha3. There is the same problem. Sound capture don't work after installation. On liveCD it work.

[Daniel T Chen (crimsun)]

Please provide /proc/asound/card*/codec* contents from both live cd and from boot.

[Leo (llenchikk)]

Installed system.

[Leo (llenchikk)]

Installed system.

[Leo (llenchikk)]

LiveCD system.

[Leo (llenchikk)]

LiveCD system.

[Scott Willey (scott-swilley)]

I have an Alienware m9700 w/ nVidia CK804

Ever since the move to pulseaudio my built-in mic has not been working. With many of the same issues stated above.

I was finally able to get it working by changing the V_REFOUT in alsamixer to 2.25v instead of High-Z

(This almost acts like mute when set to 0v. When set to High-Z it almost as if there is so much interference that you don't hear the audio. I could turn the volume up all the way and I could here what I had recorded mixed in with the static. At 3.7v there was a little white noise in the background. At 2.25v everything was perfect)

This got the mic functioning but only with the hardware configured as "Analog Stereo 5.1 output + analog stereo input"

The problem with that is that everything played a bit fast and voices sounded as though the person was breathing helium.

I set the hardware config in the pulseaudio settings to "Analog Stereo Duplex"

And the following in alsamixer.
Surround Jack Mode: Independent
IEC958 Playback Source: AC-Link
V_REFOUT: 2.25v

For me it appears that it is a combination of settings between alsamixer and pulseaudio configurations.

Everything works perfectly now.

[Scott Willey (scott-swilley)]

I forgot to mention that I am running 9.10. I have had the issue since 8.10. I think. It is hard to remember since it has been so long since it worked. Anyway, it was whenever the switch from esound to pulseaudio occurred. I have not tried this on Lucid yet.

[rammi (moskuit)]

Try /etc/modprobe.d/alsa-base.conf

options snd-hda-intel position_fix=1

[rammi (moskuit)]

And reboot

[Leo (llenchikk)]

Rammi, it's amazing! It works for me!

[Alexey Podolsky (saleangel)]

Rammi, thank you so much! It works!

[Daniel T Chen (crimsun)]

For those of you that successfully use position_fix=1 to work around
this problem, please make sure to file a separate bug against
alsa-driver using "ubuntu-bug alsa-base" so that we can collect your
hw info and fix it upstream in linux.

[Leo (llenchikk)]

New bug using "ubuntu-bug alsa-base" is #583983

[João Miguel Lopes Moreira (jmlm-1970)]

The only solution to make microphone work is to install linux-backports-modules-alsa-generic...

Just go to:

Menu / System / Administration / Synaptic Package Manager

And search and mark for installation:

linux-backports-modules-alsa-generic

tip: if you have multiple versions click on the first and read the description which should inform what name to install...

If after the reboot and mic mute is off, still does not work, just go to terminal and type:

sudo nano /etc/modprobe.d/alsa-base.conf

and add or change the following:

options snd-hda-intel model=auto enable=yes

Then Ctrl+X, type Y to write and exit, reboot and mic will work.

Bye and have lots of fun with Ubuntu (the best).

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 9.10 (karmic) reached end-of-life on April 30, 2011.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

Please upgrade to the latest version and re-test.

[Daniel van Vugt (vanvugt)]

Closed due to no response.