Sounds Both from Headphones and Speakers Ubuntu 12.04

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http://ubuntuguide.net – In Ubuntu 12.04 laptop when you plugged in headphones, sounds may come out from both headphones and speakers. Here is a solution: Open terminal from the dash home or press Ctrl+Alt+T, add the ppa: sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily update the source: sudo apt-get update Install alsa-hda-dkms package: sudo apt-get install alsa-hda-dkms Reboot and see effect! (HowTos)