[xubuntu-users] [15.04 64Bit]-Possible To Enable Both Speakers & Headphones Simultaneously?

[Ralf Mardorf]

On Wed, 08 Jul 2015 17:14:45 -0400, Jesse Palser wrote:
>E: Unable to locate package alsa-tools-gui

Ensure that "universe" is enabled [1] and run
sudo apt-get update [2] first.

[1] http://packages.ubuntu.com/vivid/alsa-tools-gui
[2] http://manpages.ubuntu.com/manpages/lucid/man8/apt-get.8.html