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[Bug 1356393] Re: [XPS M1330, SigmaTel STAC9228, Mic, Internal] volume too low and distorted even with boost

 

do your notebook support spdif , hdmi or both ?

Node 0x21 [Pin Complex] wcaps 0x400301: Stereo Digital
  Control: name="SPDIF Phantom Jack", index=0, device=0
  Pincap 0x00000010: OUT
  Pin Default 0x185610a0: [Jack] Digital Out at Int HDMI
    Conn = Digital, Color = Black
    DefAssociation = 0xa, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Connection: 5
     0x1e* 0x1f 0x1b 0x1c 0x1d


https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_sigmatel.c?id=29ac83635fcf244a7178f9fc8f918cd7ddf799d5


odec: SigmaTel STAC9228
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x83847616
Subsystem Id: 0x10280209
Revision Id: 0x100201

you need to report to the author if the pin fixup are not correct

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https://bugs.launchpad.net/bugs/1356393

Title:
  [XPS M1330, SigmaTel STAC9228, Mic, Internal] volume too low and
  distorted even with boost

Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  Description:	Ubuntu 14.04.1 LTS
  Release:	14.04

  Dell XPS M1330
  SigmaTel STAC9228
  Internal Microphone

  Problem: The capture volume is so low on the internal microphone (not the jack) that I can barely hear it even with full boost and speaker volume all the way up.  Additionally, the capture has some distortion.  If I tap on the microphone I can hear the taps, so I know that the capture is working; however, it is not functioning in a manner that allows it to be usable.
  Everything else works great, including audio output (I can hear music and sound from videos just fine).
  Additionally, when I boot into windows vista, the microphone works perfectly, so it's not a hardware issue.

  I have scoured the forums trying to find a fix, including trying all
  the different models in alsa-base.conf listed for the STAC9228 and
  trying all sorts of configurations via alsamixer and pavucontrol
  including silencing the left/right channel while leaving the other at
  full volume.  I have even tried alternate configurations via
  hdajackretask.  Thanks for any help you can give.

  jay

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic i686
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jay        1917 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Aug 13 09:54:25 2014
  InstallationDate: Installed on 2014-08-02 (10 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaRecordingTest: ALSA recording test through plughw:Intel failed
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_Jack: Mic, Internal
  Symptom_Type: High background noise, or volume is too low
  Title: [XPS M1330, SigmaTel STAC9228, Mic, Internal] Background noise or low volume
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/26/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: XPS M1330
  dmi.sys.vendor: Dell Inc.
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2014-08-13T09:42:42.548525

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