[Acer AO722] Internal microphone don't work

[Anton Sudak]

Internal microphone of netbook Acer AO722 seems don't work in 12.10.
In previous releases I mute left channel of microphone in alsamixer and it began to work. But in new release this trick don't work anymore.

ProblemType: Bug
Package: alsa-base 1.0.25+dfsg-0ubuntu3
---
ApportVersion: 2.6.1-0ubuntu9
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: zws 19134 F.... pulseaudio
 /dev/snd/pcmC1D0p: zws 19134 F...m pulseaudio
 /dev/snd/controlC0: zws 19134 F.... pulseaudio
CRDA: Error: [Errno 2] Нет такого файла или каталога
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=3f144baf-c55e-45a4-979c-b7f2af017153
InstallationDate: Installed on 2012-08-26 (103 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120826)
MachineType: Acer AO722
MarkForUpload: True
NonfreeKernelModules: fglrx wl
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=4f92715f-57ba-43e9-be27-5e3ac5092633 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-19-generic N/A
 linux-backports-modules-3.5.0-19-generic N/A
 linux-firmware 1.95
Tags: quantal quantal
Uname: Linux 3.5.0-19-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 09/19/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE10-BZ
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.07
dmi.modalias: dmi:bvnAcer:bvrV1.07:bd09/19/2011:svnAcer:pnAO722:pvrV1.07:rvnAcer:rnJE10-BZ:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.07:
dmi.product.name: AO722
dmi.product.version: V1.07
dmi.sys.vendor: Acer

[Raymond (superquad-vortex2)]

missing internal mic capture volume for int mic 0x1e when there are two ext mic 0x1a and 0x1b

Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Control: name="Mic Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Volume", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Control: name="Mic Capture Switch", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Device: name="CONEXANT Analog", type="Audio", device=0
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x50 0x00] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=4, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24

[Anton Sudak (anton-sudak)]

Raymond, it is normal that there are two external microphones. My netbook have one jack for microphone and one for headset.

[Raymond (superquad-vortex2)]

do you know which node 0x1a or 0x1b is mic jack or mic of headset ?

there are three ADC but only two audio select with mic boost

Simple mixer control 'Mic',0
  Capabilities: cvolume cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 80
  Front Left: Capture 0 [0%] [-74.00dB] [off]
  Front Right: Capture 0 [0%] [-74.00dB] [off]
Simple mixer control 'Mic 1',0
  Capabilities: cswitch cswitch-joined cswitch-exclusive penum
  Capture exclusive group: 0
  Capture channels: Mono
  Mono: Capture [off]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 4
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Mic',1
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 80
  Front Left: Capture 80 [100%] [6.00dB] [on]
  Front Right: Capture 0 [0%] [-74.00dB] [on]
Simple mixer control 'Mic Boost',1
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 4
  Front Left: 4 [100%] [40.00dB]
  Front Right: 0 [0%] [0.00dB]

Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Control: name="Mic Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Volume", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Control: name="Mic Capture Switch", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Device: name="CONEXANT Analog", type="Audio", device=0
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x50 0x00] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=4, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x15 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x4a 0x4a] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x16 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x4a 0x4a] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x17 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Control: name="Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, of...

[Anton Sudak (anton-sudak)]

I'm not sure, but seems 0x1a is headset and 0x1b is mic jack.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Raymond (superquad-vortex2)]

do the value of the mic jack control change from false to true after you plug the mic or headset ?

control.19 {
  iface CARD
  name 'Mic Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.20 {
  iface CARD
  name 'Mic Jack'
  index 1
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }

[Sushenjit Bandyopadhyay (s-bandyo1)]

How do I use this code fragment? Thanks.

[Raymond (superquad-vortex2)]

try hda-jack-sense and post the result before and after you plug mic into mic jack

[Sushenjit Bandyopadhyay (s-bandyo1)]

I am sorry, typing hda-jack-sense" at the terminal gives me command not found.

By the way, I did file a separate bug report at https://bugs.launchpad.net/bugs/1077433, but marked t as duplicate when I found this one. I hope the data there will provide some information.

Thanks

[Raymond (superquad-vortex2)]

https://lists.launchpad.net/ubuntu-audio-dev/msg00205.html

[Sushenjit Bandyopadhyay (s-bandyo1)]

I am having some trouble installing snd-hda-tools from the ppas. I get

W: Failed to fetch http://ppa.launchpad.net/diwic/ppa/ubuntu/dists/quantal/main/binary-i386/Packages 404 Not Found

when I do apt-get update.

I finally found an external microphone and plugged it in. Didn't get any sound at all. when I plugin the headphone, alsamixer shows the change in levels from internal speakers to earphone. However, when I plugin the external microphone alsamixer does not show any change. The input sound level indicator sound settings does not show any signs of the external microphone working.

Thanks

[Raymond (superquad-vortex2)]

which mic jack kcontrol change from false to true ?

amixer -c 0 contents

[Sushenjit Bandyopadhyay (s-bandyo1)]

With external mic unplugged I get this:
numid=1,iface=CARD,name='HDMI/DP,pcm=3 Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=2,iface=MIXER,name='IEC958 Playback Con Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=3,iface=MIXER,name='IEC958 Playback Pro Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=4,iface=MIXER,name='IEC958 Playback Default'
  ; type=IEC958,access=rw------,values=1
  : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=5,iface=MIXER,name='IEC958 Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=6,iface=PCM,name='ELD',device=3
  ; type=BYTES,access=r-------,values=0
  : values=

With external mic plugged I get this:

numid=1,iface=CARD,name='HDMI/DP,pcm=3 Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=2,iface=MIXER,name='IEC958 Playback Con Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=3,iface=MIXER,name='IEC958 Playback Pro Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=4,iface=MIXER,name='IEC958 Playback Default'
  ; type=IEC958,access=rw------,values=1
  : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=5,iface=MIXER,name='IEC958 Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=6,iface=PCM,name='ELD',device=3
  ; type=BYTES,access=r-------,values=0
  : values=

Thanks

[Raymond (superquad-vortex2)]

how about the value of numid 19 and 20 mic jack ?

[Raymond (superquad-vortex2)]

should be

amixer -c1 contents

[Sushenjit Bandyopadhyay (s-bandyo1)]

seems like both are off when the mic is unplugged:

numid=19,iface=CARD,name='Mic Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=20,iface=CARD,name='Mic Jack',index=1
  ; type=BOOLEAN,access=r-------,values=1
  : values=off

numid=20 gets the value on when mic is plugged in:

numid=19,iface=CARD,name='Mic Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=20,iface=CARD,name='Mic Jack',index=1
  ; type=BOOLEAN,access=r-------,values=1
  : values=on

Thanks

[Raymond (superquad-vortex2)]

this mean that 0x1b is the pin complex for ext mic

you need to change the pin default of node 0x1a from [Jack] to.[N/A]

00b The Port Complex is connected to a jack (1/8", ATAPI, etc.)
01b No physical connection for Port.

change pin default of node 0x1a to 0x43a1103e

Node 0x1a [Pin Complex] wcaps 0x400481: Stereo
  Control: name="Mic Jack", index=0, device=0
  Pincap 0x00001324: IN Detect
    Vref caps: HIZ 50 80
  Pin Default 0x03a1103e: [Jack] Mic at Ext Left
    Conn = 1/8, Color = Black
    DefAssociation = 0x3, Sequence = 0xe
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=03, enabled=1
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
Node 0x1b [Pin Complex] wcaps 0x400581: Stereo
  Control: name="Mic Jack", index=1, device=0
  Pincap 0x00011334: IN OUT EAPD Detect
    Vref caps: HIZ 50 80
  EAPD 0x2: EAPD
  Pin Default 0x03a19030: [Jack] Mic at Ext Left
    Conn = 1/8, Color = Pink
    DefAssociation = 0x3, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=04, enabled=1
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 2
     0x10* 0x11

http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=blob_plain;f=Documentation/sound/alsa/HD-Audio.txt;hb=HEAD

Early Patching
~~~~~~~~~~~~~~
When CONFIG_SND_HDA_PATCH_LOADER=y is set, you can pass a "patch" as a
firmware file for modifying the HD-audio setup before initializing the
codec. This can work basically like the reconfiguration via sysfs in
the above, but it does it before the first codec configuration.

A patch file is a plain text file which looks like below:

------------------------------------------------------------------------
  [codec]
  0x12345678 0xabcd1234 2

  [model]
  auto

  [pincfg]
  0x12 0x411111f0

  [verb]
  0x20 0x500 0x03
  0x20 0x400 0xff

  [hint]
  hp_detect = yes
------------------------------------------------------------------------

The file needs to have a line `[codec]`. The next line should contain
three numbers indicating the codec vendor-id (0x12345678 in the
example), the codec subsystem-id (0xabcd1234) and the address (2) of
the codec. The rest patch entries are applied to this specified codec
until another codec entry is given. Passing 0 or a negative number to
the first or the second value will make the check of the corresponding
field be skipped. It'll be useful for really broken devices that don't
initialize SSID properly.

The `[model]` line allows to change the model name of the each codec.
In the example above, it will be changed to model=auto.
Note that this overrides the module option.

After the `[pincfg]` line, the contents are parsed as the initial
default pin-configurations just like `user_pin_configs` sysfs above.
The values can be shown in user_pin_configs sysfs file, too.

Similarly, the lines after `[verb]` are parsed as `init_verbs`
sysfs entries, and the lines after `[hint]` are parsed as `hints`
sysfs entries, respectively.

Another example to override the codec vendor id from 0x12345678 to
0xdeadbeef is like below:
------------------------------------------------------------------------
  [codec]
  0x12345678 0xabcd1234 2

  [vendor_id]
  0xdeadbee...

[Sushenjit Bandyopadhyay (s-bandyo1)]

I am sorry. This is too complex for me. I appreciate the link and the quote of the relevant section, but I do not understand how to do this on my own.

I will need the patch file text and instructions to (a) how to apply the patch, (b) how to test the patch, as well as (c) how to remove it, if it does not work.

Thanks

[Raymond (superquad-vortex2)]

you can follow up your case if the previous patch did not fix hour problm

http://mailman.alsa-project.org/pipermail/alsa-devel/2012-November/057122.html

[Sushenjit Bandyopadhyay (s-bandyo1)]

Raymond, thank you very much for helping me with this problem. It is not that the patch didn't work. Its just that I don't know how to apply the patch. The alsa-project mailing list appears to be targeted to those who understand programming. I am just a regular "Joe" the desktop user. I can at most copy and paste something in the Gedit or the terminal.

It will be great if you could be a bit patient with me and help me with the patch.

Thanks again.

[Anton Sudak (anton-sudak)]

Look like this bug is a regression. I tried kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.4-quantal/ and internal mic works fine for me.

[Sushenjit Bandyopadhyay (s-bandyo1)]

Thanks ZwS. This I can try.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1074615

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Anton Sudak (anton-sudak)]

apport information

[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Anton Sudak (anton-sudak)]

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[Sushenjit Bandyopadhyay (s-bandyo1)]

Any progress on this bug?

Thanks!

[Josep Pujadas-Jubany (jpujades)]

Same problem...

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1072162/comments/5

[Raymond (superquad-vortex2)]

http://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_conexant.c?id=74d3e69728a0dcee8cd0f93da4dc077431d59606

send email to the author

do pulseaudio expect to find int mic boost and Mic boost if auto Mic is enabled ?

Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Control: name="Mic Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Mic Capture Volume", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Control: name="Mic Capture Switch", index=1, device=0
    ControlAmp: chs=3, dir=In, idx=1, ofs=0
  Device: name="CONEXANT Analog", type="Audio", device=0
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x50 0x01] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=4, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x15 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x4a 0x4a] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x16 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x80 0x80] [0x4a 0x4a] [0x4a 0x4a] [0x4a 0x4a]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24
Node 0x17 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Control: name="Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-Out vals: [0x00 0x00]
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x1a 0x1b 0x1d 0x1e*
Node 0x18 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Control: name="Mic Boost Volume", index=1, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-Out vals: [0x04 0x04]
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 4
     0x1a* 0x1b 0x1d 0x1e

[penalvch (penalvch)]

Anton Sudak, as per http://us.acer.com/ac/en/US/content/drivers an update is available for your BIOS (1.11). If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Anton Sudak (anton-sudak)]

Christopher M. Penalver, for me this bug is not actual anymore. Now I running 13.04 with 3.11-rc3 from kernel-ppa and bug doesn't happen here. I can update my bios (it is 1.07 currently) and test it with 12.10 and 13.04 with standard kernel, but this will take some time.
Only one wrong thing I see now. When I unplug external mic, Mic Boost for internal mic setting to 0.

[Raymond (superquad-vortex2)]

try hda-jack-retask to change node 0x1a to not connected if node 0x1b is ext mic

auto Mic will be enabled after the pin fix up

[Sushenjit Bandyopadhyay (s-bandyo1)]

This bug came back with Ubuntu 13.10. The internal mic has stopped working again.

[Raymond (superquad-vortex2)]

> it is normal that there are two external microphones. My netbook have one jack for microphone and one for headset.

have you try this patch with mic and headset mic ?

http://mailman.alsa-project.org/pipermail/alsa-devel/2013-October/067170.html

I doubt which mic will be selected when both mic and headset mic are plugged

does it mean that automic will be automatically disabled when there are two detected mic and internal mic

[penalvch (penalvch)]

Sushenjit Bandyopadhyay, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

No need exists to comment here at this time. After reading the above documentation in it's entirety, if you have further questions, you are welcome to redirect them to the appropriate mailing list or forum via http://www.ubuntu.com/support/community/mailinglists , or you may contact me directly.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

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