Been having this persistent problem where sound plays ok from my headphones but not from my onboard speakers.
I've searched around on the web and tried various things but to no avail.
I Even updated to 12.04 but it didn't solve the issue either.
Here is the link from my output from SOUNDTROUBLESHOOTING (https://help.ubuntu.com/community/So...otingProcedure) step 4:
I noticed that ALSA driver didnt match, maybe thats the problem.
!!ALSA Version !!------------ Driver version: 1.0.24 Library version: 1.0.25 Utilities version: 1.0.25
but i am not sure about how to correct this.
Help is greatly appreciated.