you need to find out which unconnectecd pin complex is the headset mic
need to recomplie driver
patch_via.c
patch_vt1802
spec->parser_flags = HDA_PINCFG_HEADSET_MIC;
try three unconnected pin complex which pincap support IN one by one
{ 0x??, 0x01a1913c }, /* use as headset mic, without its own jack
detect */
Noe 0x29 [Pin Complex] wcaps 0x400481: Stereo
Pincap 0x00002324: IN Detect
Vref caps: HIZ 50 100
Pin Default 0x50a701f0: [N/A] Mic at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x00: VREF_HIZ
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
Node 0x2a [Pin Complex] wcaps 0x400481: Stereo
Pincap 0x00002324: IN Detect
Vref caps: HIZ 50 100
Pin Default 0x418130f0: [N/A] Line In at Ext Rear
Conn = 1/8, Color = Blue
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x00: VREF_HIZ
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
Node 0x2b [Pin Complex] wcaps 0x400481: Stereo
Pincap 0x00002324: IN Detect
Vref caps: HIZ 50 100
Pin Default 0x41a190f0: [N/A] Mic at Ext Rear
Conn = 1/8, Color = Pink
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x00: VREF_HIZ
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1332233
Title:
[HDA-Intel - HDA Intel PCH, recording] Recording problem
Status in alsa-driver package in Ubuntu:
New
Bug description:
I opened a thread in the forums first. For reference:
http://ubuntuforums.org/showthread.php?t=2230136&p=13052352
The basic issue is that I got a new Asus S400CA laptop. It has a combo
jack for headphones/mic (like phones do now). With Windows 8, the
headset worked fine (both input and output through the one jack). With
Ubuntu 14.04 it works for output, but not for input.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: acampbell 3333 F.... pulseaudio
acampbell 23019 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Jun 19 12:05:57 2014
InstallationDate: Installed on 2014-06-14 (5 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Type: Only some of inputs are working
Title: [HDA-Intel - HDA Intel PCH, recording] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/28/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: S400CA.206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: S400CA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrS400CA.206:bd11/28/2012:svnASUSTeKCOMPUTERINC.:pnS400CA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnS400CA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: S400CA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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