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[Attila Hammer <hammera@xxxxxxxxx>]

Hy,

I have got a last question:
In hungary I am developing a little derivative Ubuntu distribution for 
visual impaired users since 2008 year, with provide basic visual 
impaired profile and screen reader support with default. The 
distribution name is BeLin.
If I would like decreasing this type problems until this type bug is not 
fixed with various sound card drivers, possibleI doing a workaround 
solution?
For example, how can possible detecting what defauld mixer track are 
muted, or what mixer track volume level is 0?
I tryed determining under GNOME level the default audio mixer and 
default mixer tracks, both two this topic related gconf keys are 
returned empty values.
I tryed using following official gconf keys without luck:
/desktop/gnome/sound/default_mixer_device, 
/desktop/gnome/sound/default_mixer_tracks

I would like doing for Orca Screen Reader a custom script. If the visual 
impaired user machine for example muted the sound card default output 
volume meter, and press a keystroke, I would like unmute absolute sure 
the default output sound track.
Not only my hungarian visual impaired users oriented distribution need 
resolving this problem temporary until this type problems not possible 
fixing, for example the international Vinux distribution have similar 
problems.
For example, Vinux distribution homepage is following:
http://vinuxproject.org/

Only screen reader users are critical important to have possibility to 
unmute the default soundcard volumes. Of course, have various soundcard 
manufacturers, various sound card chipsets, so possible this problem fix 
with workarounds are impossible.
Both Vinux and BeLin already containing an Orca customization script, 
with are provide changing master volume meter volume percentage, and 
change master volume meter mute status. Unfortunately, various sound 
card models are naming different the volume meters, and this type script 
are not provide full good percentage.

Attila

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-media in Ubuntu.
https://bugs.launchpad.net/bugs/862287

Title:
  [Lucid] Front, Surround, LFE, and Center volume meters are default
  muted with 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family
  High Definition Audio Controller (rev 01) sound card

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

Bug description:
  Dear Developers,

  In Ubuntu 10.04.3 release if an user booted with the live CD, default the live system with following volum,e meters are default muted, I copyed amixer names:
  'Front',0
  'Surround',0
  'Center',0
  'LFE',0
  If I launch with GNOME Volume Control preference tool, mincreasing the output slider and uncheck the mute checkbox, the problem is resolved.
  Of course, this problem fixing is important for a11y related, because a screen reader user is important to default hear the screen reader audio output.
  I don't no yet this problem are present with newest Ubuntu releases this soundcard chipset, and I not often possible to use this machine with testing this problem.

  I attaching two amixer text file, first file is showing the original
  result, second shoving the results after I unchecked the mute checkbox
  with GNOME Volume Control preference tool.

  To easyest your work, I doed a diff output with two text file with diff -u command, see the results:
  --- hang1.txt	2011-09-29 13:26:00.941940936 +0200
  +++ hang2.txt	2011-09-29 13:27:00.877940898 +0200
  @@ -8,32 +8,32 @@
     Playback channels: Front Left - Front Right
     Limits: Playback 0 - 255
     Mono:
  -  Front Left: Playback 255 [100%] [0.00dB]
  -  Front Right: Playback 255 [100%] [0.00dB]
  +  Front Left: Playback 254 [100%] [0.20dB]
  +  Front Right: Playback 254 [100%] [0.20dB]
   Simple mixer control 'Front',0
     Capabilities: pvolume pswitch penum
     Playback channels: Front Left - Front Right
     Limits: Playback 0 - 64
     Mono:
  -  Front Left: Playback 52 [81%] [-9.00dB] [on]
  -  Front Right: Playback 52 [81%] [-9.00dB] [on]
  +  Front Left: Playback 64 [100%] [0.00dB] [on]
  +  Front Right: Playback 64 [100%] [0.00dB] [on]
   Simple mixer control 'Surround',0
     Capabilities: pvolume pswitch penum
     Playback channels: Front Left - Front Right
     Limits: Playback 0 - 64
     Mono:
  -  Front Left: Playback 64 [100%] [0.00dB] [off]
  -  Front Right: Playback 64 [100%] [0.00dB] [off]
  +  Front Left: Playback 64 [100%] [0.00dB] [on]
  +  Front Right: Playback 64 [100%] [0.00dB] [on]
   Simple mixer control 'Center',0
     Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
     Playback channels: Mono
     Limits: Playback 0 - 64
  -  Mono: Playback 64 [100%] [0.00dB] [off]
  +  Mono: Playback 64 [100%] [0.00dB] [on]
   Simple mixer control 'LFE',0
     Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
     Playback channels: Mono
     Limits: Playback 0 - 64
  -  Mono: Playback 64 [100%] [0.00dB] [off]
  +  Mono: Playback 64 [100%] [0.00dB] [on]
   Simple mixer control 'Line Jack Mode',0
     Capabilities: enum
     Items: 'Mic In' 'Line In' 'Line Out'

  
  Attila

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: gnome-media 2.30.0-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-33.70-generic 2.6.32.41+drm33.18
  Uname: Linux 2.6.32-33-generic i686
  Architecture: i386
  Date: Thu Sep 29 13:37:52 2011
  LiveMediaBuild: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
  ProcEnviron:
   LANGUAGE=hu_HU:en
   LANG=hu_HU.UTF-8
   LC_MESSAGES=hu_HU.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-media

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