When your computer has more than one sound cards installed, you probably want to use one of them as the default output. Here's a step by step tutorial for the newbie ...
Step 1: Open the terminal and type
asoundconf listyou get a list of the recognized cards like this :
peter@ubustudio:~$ asoundconf list
Names of available sound cards:
Step2: In my case , the M1010 is the one I prefer so I type :
asoundconf set-default-card M1010
and the job is done.
Note: When I reboot my computer, the soundcards switch places so I often have to do these settings again . I'm looking for a way to fix this , if you have any recommendations , please leave a reply.