lenovo n585 microphone does not work

[aovacik]

Microphones (internal or external via combo jack) do not work on ubuntu 12-04 and Lenovo ideapad N585

In sound settings the noise meter never moves . same in google chat microphone test

I have uploaded alsa info at http://www.alsa-project.org/db/?f=ad9a743c8bfe599c27ff71cc6f74247242ac4b45
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 1: Generic_1 [HD-Audio Generic], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: arda 1772 F.... pulseaudio
 /dev/snd/pcmC1D0c: arda 1772 F...m pulseaudio
 /dev/snd/pcmC1D0p: arda 1772 F...m pulseaudio
 /dev/snd/controlC0: arda 1772 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Generic'/'HD-Audio Generic at 0x90344000 irq 45'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 6
   Simple ctrls : 1
Card0.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card1.Amixer.info:
 Card hw:1 'Generic_1'/'HD-Audio Generic at 0x90340000 irq 16'
   Mixer name : 'Conexant CX20590'
   Components : 'HDA:14f1506e,17aac039,00100003'
   Controls : 8
   Simple ctrls : 5
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
NonfreeKernelModules: fglrx
Package: alsa-driver (not installed)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Tags: precise running-unity
Uname: Linux 3.2.0-29-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 09/14/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6CCN91WW(V8.04)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo IdeaPad N585
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad N585
dmi.modalias: dmi:bvnLENOVO:bvr6CCN91WW(V8.04):bd09/14/2012:svnLENOVO:pn20179:pvrLenovoIdeaPadN585:rvnLENOVO:rnLenovoIdeaPadN585:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadN585:
dmi.product.name: 20179
dmi.product.version: Lenovo IdeaPad N585
dmi.sys.vendor: LENOVO

[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[aovacik (aovacik)]

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[Raymond (superquad-vortex2)]

it is strange that unsolicited event is not enabled at mic jack node 0x1a

and unsolicited event is enabled at node 0x1b which do not support jack detection Misc = NO_PRESENCE

Node 0x1a [Pin Complex] wcaps 0x400481: Stereo
  Pincap 0x00001324: IN Detect
    Vref caps: HIZ 50 80
  Pin Default 0x04a11030: [Jack] Mic at Ext Right
    Conn = 1/8, Color = Black
    DefAssociation = 0x3, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=00, enabled=0
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
Node 0x1b [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x00011334: IN OUT EAPD Detect
    Vref caps: HIZ 50 80
  EAPD 0x2: EAPD
  Pin Default 0x95a70120: [Fixed] Mic at Int Top
    Conn = Analog, Color = Unknown
    DefAssociation = 0x2, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x00: VREF_HIZ
  Unsolicited: tag=38, enabled=1
  Power states: D0 D1 D2 D3 D3cold EPSS
  Power: setting=D0, actual=D0
  Connection: 2
     0x10* 0x11

[Launchpad Janitor (janitor)]

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

[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.]