[Aspire 1810TZ, Realtek ALC269, Mic, Internal] No sound at all

hey there,

the integrated microphone in my ACEr 1810TZ doesnt work. i dont have many information, just that pulseaudio and also are installed.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: joachim 1731 F.... pulseaudio
                      joachim 3629 F.... gnome-alsamixer
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x94500000 irq 45'
   Mixer name : 'Intel Cantiga HDMI'
   Components : 'HDA:10ec0269,1025029b,00100004 HDA:80862802,80860101,00100000'
   Controls : 29
   Simple ctrls : 13
CurrentDmesg:
 [ 23.370545] init: plymouth-stop pre-start process (1270) terminated with status 1
 [ 30.896034] eth0: no IPv6 routers present
 [ 54.470645] audit_printk_skb: 27 callbacks suppressed
 [ 54.470651] type=1400 audit(1342380860.841:27): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=1962 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Date: Sun Jul 15 21:51:46 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:Intel failed
Symptom_Card: Eingebautes Audio - HDA Intel
Symptom_DevicesInUse:
 1731 3629 joachim F.... pulseaudio
                      joachim F.... gnome-alsamixer
Symptom_Jack: Mic, Internal
Symptom_Type: No sound at all
Title: [Aspire 1810TZ, Realtek ALC269, Mic, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/05/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: v1.3308
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM11-MS
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrv1.3308:bd01/05/2010:svnAcer:pnAspire1810TZ:pvrv1.3308:rvnAcer:rnJM11-MS:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 1810TZ
dmi.product.version: v1.3308
dmi.sys.vendor: Acer