I realize that this is an ancient one; but here's the answer:

On the LE1600, the audio is not connected to the "normal" ports of the
STAC9758.

Using alsamixer, set the following. There is no easy way to do this, as
I don't have a .store file; you have to navigate through the alsamixer
interface, and change each setting as listed:

set Master on
set Front on
set Master 31 (max volume)
set Front 31 (max volume)
set Capture 31 (max volume)
set Mic 31 (max volume)

set 'External Amplifier' off
set 'Mic Input Source' 'Mic1 Jack'
set 'Mic Select' 'Mic1'
set 'Rear Jack' 'Front Output'
set 'Mic1 Jack' 'Input/Disabled'
set 'LineIn Jack' 'Front Output'
set 'Line Input Source' 'Mute'
set 'Center/LFE Jack' 'Input/Disabled'
set 'Front Jack' 'Input/Disabled'
set 'Headphone Amp' 'Rear Jack'

This is confirmed to work with a Motion Computing Inc. LE1600; but it
may work with other tablet-based Compal systems.

V/r,
Mike

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/774542

Title:
  [ICH4 - Intel ICH6, playback] No sound at all

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

Bug description:
  Both 10.10 and 11.04 have no sound for LE1600 Tablet

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: alsa-base 1.0.24+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  solarboy   1246 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'ICH6'/'Intel ICH6 with STAC9758,59 at irq 17'
     Mixer name : 'SigmaTel STAC9758,59'
     Components : 'AC97a:83847658'
     Controls      : 50
     Simple ctrls  : 37
  CheckboxSubmission: 3fa4bb708fb73202cfcfe0c9bb22f401
  CheckboxSystem: c925ed66fbb6fb95ab27315f9d025b66
  Date: Sat Apr 30 16:44:48 2011
  InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 
(20101007)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:ICH6 failed
  Symptom_Card: Internal Audio - Intel ICH6
  Symptom_DevicesInUse: 1246
  Symptom_Type: No sound at all
  Title: [ICH4 - Intel ICH6, playback] No sound at all
  UpgradeStatus: Upgraded to natty on 2011-04-30 (0 days ago)
  dmi.bios.date: 12/19/2006
  dmi.bios.vendor: Motion Computing - LE1600
  dmi.bios.version: A12
  dmi.board.name: Compal DX20
  dmi.board.vendor: Compal Computer Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Compal Computer Corporation
  dmi.chassis.version: N/A
  dmi.modalias: 
dmi:bvnMotionComputing-LE1600:bvrA12:bd12/19/2006:svnMotionComputing:pnLE1600:pvrA0:rvnCompalComputerCorporation:rnCompalDX20:rvrNone:cvnCompalComputerCorporation:ct10:cvrN/A:
  dmi.product.name: LE1600
  dmi.product.version: A0
  dmi.sys.vendor: Motion Computing

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