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Possible Duplicate:
Sound comes out of my speakers even when headphones are plugged in

When I plug my headphones into the headphone jack and start watching video or listening to a song, not only does the sound come from headphones, but also from the laptop speakers. This is annoying. What's the fix?

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marked as duplicate by Jorge Castro, James Apr 29 '12 at 19:13

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

it is your sound configuration i had the same problem and this worked for me. sadly i dont remember how to get the available configurations. but you can try a few simple changes like auto

-in the terminal box insert. " sudo nano /etc/modprobe.d/alsa-base.conf "

-enter password

-scroll down to the bottom of the page and insert the following command after the last command already there. " options snd-hda-intel model=asus-mode3 "

-this one worked for me but you could try one of the other models ("asus-mode1" through "asus-mode8", or either "base" or "auto")

-exit saving your changes by holding down the "Ctrl" and "Shift" keys and pressing the " ^ " key (6) and than the "x" key.

-it'll ask you if you want to save your changes press "y" and than "Enter" to save the changes to the document.

-you'll find your self back in the terminal box. Now reboot your computer.

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