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I just noticed my built-in audio output doesn't work anymore (MacBook Pro, late 2008). I've tried all sorts of headphones, but none of them seemed to work. Right now I'm using an external USB soundcard, but I'd really like to figure out what happened here. I haven't installed, upgraded or updated anything at all: it just happened. Do you guys have any suggestions about this? What kind of data should I look for to help debug/diagnose?

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up vote 1 down vote accepted

Look if you have red glow coming of it. And if it is showing digital Out in Sound Preferences.

If it is the case take a toothpick to the rescue!

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Worked! Thanks :) – João Oct 28 '11 at 13:44

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