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[Bug 874927] [NEW] changing the volume in the sound preferences mess up volumes in alsamixer for multi-channel card

 

Public bug reported:

My laptop's sound card needs a little configuration of the channels volumes in alsamixer to provide good sound.
After a fine tune in alsamixer, the sound is great, but if I change the volume in gnome's sound preferences it does not only affect the master volume in alsamixer, it also affects the volumes of PCM, Front, Surround, Center, LFE and Side channels in an erratic manner (the most of the times it puts all the volumes to the max or almost). The master volume moves just fine.
I hope my explanation is good enough to understand the problem...

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  winnie     1520 F.... pulseaudio
                      winnie     1979 F.... alsamixer
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 47'
   Mixer name	: 'Realtek ALC888'
   Components	: 'HDA:10ec0888,17aa3d7c,00100001 HDA:10573055,17aa3d7d,00100700'
   Controls      : 39
   Simple ctrls  : 23
Date: Sat Oct 15 11:29:40 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio interne - HDA Intel
Symptom_Jack: Speaker, Internal
Symptom_Type: Volume slider, or mixer problems
Title: [INVALID, Realtek ALC888, Speaker, Internal] volume slider problem
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (1 days ago)
dmi.bios.date: 03/31/2008
dmi.bios.vendor: LENOVO
dmi.bios.version: 06CN29WW
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: SPEEDY
dmi.board.vendor: LENOVO
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnLENOVO:bvr06CN29WW:bd03/31/2008:svnLENOVO:pnINVALID:pvrLenovoIdeaPadY510:rvnLENOVO:rnSPEEDY:rvr1.0:cvnLENOVO:ct10:cvr1.0:
dmi.product.name: INVALID
dmi.product.version: Lenovo IdeaPad Y510
dmi.sys.vendor: LENOVO
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-10-14T16:11:31.389261

** Affects: gnome-media (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric

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https://bugs.launchpad.net/bugs/874927

Title:
  changing the volume in the sound preferences mess up volumes in
  alsamixer for multi-channel card

Status in “gnome-media” package in Ubuntu:
  New

Bug description:
  My laptop's sound card needs a little configuration of the channels volumes in alsamixer to provide good sound.
  After a fine tune in alsamixer, the sound is great, but if I change the volume in gnome's sound preferences it does not only affect the master volume in alsamixer, it also affects the volumes of PCM, Front, Surround, Center, LFE and Side channels in an erratic manner (the most of the times it puts all the volumes to the max or almost). The master volume moves just fine.
  I hope my explanation is good enough to understand the problem...

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: alsa-base 1.0.24+dfsg-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  winnie     1520 F.... pulseaudio
                        winnie     1979 F.... alsamixer
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 47'
     Mixer name	: 'Realtek ALC888'
     Components	: 'HDA:10ec0888,17aa3d7c,00100001 HDA:10573055,17aa3d7d,00100700'
     Controls      : 39
     Simple ctrls  : 23
  Date: Sat Oct 15 11:29:40 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Audio interne - HDA Intel
  Symptom_Jack: Speaker, Internal
  Symptom_Type: Volume slider, or mixer problems
  Title: [INVALID, Realtek ALC888, Speaker, Internal] volume slider problem
  UpgradeStatus: Upgraded to oneiric on 2011-10-14 (1 days ago)
  dmi.bios.date: 03/31/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 06CN29WW
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: SPEEDY
  dmi.board.vendor: LENOVO
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnLENOVO:bvr06CN29WW:bd03/31/2008:svnLENOVO:pnINVALID:pvrLenovoIdeaPadY510:rvnLENOVO:rnSPEEDY:rvr1.0:cvnLENOVO:ct10:cvr1.0:
  dmi.product.name: INVALID
  dmi.product.version: Lenovo IdeaPad Y510
  dmi.sys.vendor: LENOVO
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-10-14T16:11:31.389261

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