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Fix Sound still coming from speakers after plug in headphones on Ubuntu 10.04

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linux-howto

http://ubuntuguide.net – In Ubuntu 8.04,there’s a check-box called “Headphone Jack Sense” in Sound Preferences to mute speakers when plug in earphones.But this option disappeared on Ubuntu 10.04’s sound preferences window. If your laptop have the problem that sound still comes out from speakers after headphones plugged in,you can try following methods. Method 1. Open a terminal window and run this command: alsamixer you should see following screen,use right and left arrow key to navigate to Headphone and press M to set default MM (HowTos)