failed to control 7.1 speaker volume through sound menu

[Fusion]

1) ubuntu 12.10 (fresh install), but also happens to 11.10 and 12.04
2) (translated from my language)
gnome-control-center:
  Installed: 1:3.4.2-0ubuntu19
  Suggested: 1:3.4.2-0ubuntu19
  Edition matrix:
 *** 1:3.4.2-0ubuntu19 0
        500 http://gr.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status

3) ----what expected ---
can control volume through indicator as i could if stereo or 5.1 configuration is set up

4) -----what happened------
i used 7.1 analog configuration (hardware: creative x-fi xtreme music, creative inspire t7900) and the only way to control the volume correct is through qasmixer.
On a fresh install i have no sound on center speaker and there is no way to fix it (without qasmixer) through gnome-control-center\sound.
I post it as bug of gnome-control-center\sound because I suppose it is. Every other speaker configuration works fine. I supose that the normal in this case is to can control the volume through gnome-control-center\sound (or indicator) without any other software.
The solution i gave to myself was to set the volume from the gnome-control-center\sound to max, and control the rest through the qasmixer... but i wish it works in a normal way. Now, the gnome-control-center\sound and the sound indicator (the volume option, not the hole thing) are totally useless to me.

5) hope it helps

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gnome-control-center 1:3.4.2-0ubuntu19
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
Date: Mon Oct 22 14:11:11 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu4
 deja-dup 24.0-0ubuntu1
 gnome-control-center-signon 0.0.18-0ubuntu1
 indicator-datetime 12.10.2-0ubuntu3

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jarno Suni (jarnos)]

Does it work better on Ubuntu 13.04?

[Fusion (bornolbers)]

No. Same problem on Ubuntu 13.04. The 5.1 configuration is fine, but the 7.1 configuration a. cannot be controled correctly by the main volume, b. center speaker is muted by default unless you fix it with Qasmixer.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 12.10 (quantal) reached end-of-life on May 16, 2014.
And Ubuntu 13.04 (raring) reached end-of-life on January 27, 2014.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]