Quote Originally Posted by Giovy View Post
I checked all the volume levels, I've tried different audio source but still no audio.
In the first post of this thread I can read that the audio should work out of the box...
That's why I'm thinking it's not related to the 3810T but a general sound problem (and that you should look for help in a general sound thread). In any case, you need to figure out what the problem is. Here are 2 links to get you on your way.

https://help.ubuntu.com/community/SoundTroubleshooting
https://help.ubuntu.com/community/Sound