Description of problem:
On MacBook Pro 13" (5,5) summer 2009 edition the front speaker is muted by default. Modifying this (unmute + setting volume to 0dB fixes it). This report is for the built in speakers.
Version-Release number of selected component (if applicable):
No sound without modifying mixer (alsamixer -c 0)
Sound by default
*** This bug has been marked as a duplicate of bug 590907 ***