Audio barely heard from headphone, amplified. no sound from laptop speakers either [ALI5451 - ALI 5451] ALSA test tone not correctly played back

[Jeremiah Timmins]

1
Description: Ubuntu 10.04.4 LTS
Release: 10.04

2
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.04.4 LTS
Release: 10.04
Codename: lucid

3
I expect the sound to work.

4
no sound from speakers, headphones play very faint sound when amplified.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: A5451 [ALI 5451], device 0: ALI 5451 [ALI 5451]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: toshiba 8379 F.... pulseaudio
 /dev/snd/pcmC0D0c: toshiba 8379 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'A5451'/'ALI 5451 at 0x1000, irq 11'
   Mixer name : 'Analog Devices AD1981B'
   Components : 'AC97a:41445374'
   Controls : 28
   Simple ctrls : 20
Date: Sat Mar 31 03:20:48 2012
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANG=en_CA.utf8
 SHELL=/bin/bash
SelectedCard: 0 A5451 ALI5451 - ALI 5451
SourcePackage: alsa-driver
Symptom: audio
Title: [ALI5451 - ALI 5451] ALSA test tone not correctly played back
dmi.bios.date: 05/19/2003
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 1.10
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.asset.tag: 0000000000
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: Version 1.0
dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.10:bd05/19/2003:svnTOSHIBA:pnSatelliteA20:pvrPSA20C-02HKQP:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
dmi.product.name: Satellite A20
dmi.product.version: PSA20C-02HKQP
dmi.sys.vendor: TOSHIBA

[Daniel Letzeisen (dtl131)]

It could be an inverted amp. Add the following line to /etc/modprobe.d/alsa-base.conf:
options snd-intel8x0 ac97_quirk=inv_eapd

Reboot (or reload alsa) and see if that helps. If not, delete the line you added.

[Jeremiah Timmins (jeremiahinseclusion)]

Dave,
thank you for the advice, i added the line as directed but there is only a minor increase in sound. to get any sound all levels have to be increased to max and that still does not produce levels that one would expect - my ears should be hurting. also, the levels from the internal speakers are about the same output. maybe this could further your brainstorming and i'm hopeful you know a solution :)

thanks again,
Jeremiah

[dino99 (9d9)]

That version is no more supported; and no expecting backport as it only concern 'security' problem.