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

any ideas, thoughts or suggestions

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marked as duplicate by Marco Ceppi Oct 25 '10 at 6:55

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.

    
Possibly related: askubuntu.com/questions/6993/internal-microphone-not-working –  User Oct 25 '10 at 5:47

2 Answers 2

up vote 2 down vote accepted

It's probably because your sound card isn't known to Ubuntu, or needs a tweak ("quirk") in /etc/modprobe.d/alsa-base.conf

For example, Dell laptops often need options snd-hda-intel model=dell-m6-dmic to be added to the end of the file.

Look here as a starting point for your model.

This is probably a duplicate of Question 100.

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Try using http://www.alsa-project.org/main/index.php/HDA_Analyzer

In it's GUI interface there are several "PIN" options, if you click around "OUT" connector, you are able to forcefully turn on/off headphone and speaker configuration. That was the only solution what worked for me even with 2.6.36 kernel (I have Panasonic CF-R9).

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