5.1 Channel Audio option is not found in sound UI settings of AMD HDMI

[maruthi]

Steps to reproduce the issue:

1. Install Ubuntu 14.04.3 LTS on AMD PC with a AMD GPU card(Tonga/Fiji)
2. Make sure AMD GPU driver (amdgpu.ko) is loaded.
3. Connect PC to a monitor/AV receiver capable of 5.1 audio.
4. Click on System Settings -> Sound -> output tab.
5. HDMI/DP Endpoint is shown, but 5.1 channel option is not listed.

Additional information:

1. Try to play from command line application 'speaker-test'.
   We can hear 5.1 audio. Only UI option to select 5.1 audio is missing
2. Repeat the same steps to reproduce ,but replace PC with AMD CPU with Intel CPU.
   UI option to select 5.1 audio can be seen in 'sound settings' and can be tested from there too.

Update on 22-03-2016 :

With Ubuntu 14.04.4 LTS on above mentioned setup, 5.1 channel option is displayed, but not 7.1 channel option to select.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1551279/+editstatus and add the package name in the text box next to the word Package.

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[maruthi (maruthi-bayyavarapu)]

soundsettings is part of unity-control-center. So, updated package to 'unity-control-center'.