Comment 14 for bug 930842

Revision history for this message
Daniel Letzeisen (dtl131) wrote : Re: I have no sound

I saw a post here from an M520 owner that suggests an inverted amp setting: http://www.ubuntux.org/centrino-sound-problem

Run alsamixer with this command:
alsamixer

Turn off the 'External Amp' setting. and see if you get sound.