Well, normally I'd say do a search since it's covered several times; at least how to post the relevant info, however since you left the dark side I'll just take this one straight up
Post up the output of:
lspci
If it makes it easier you can first pipe it to a text file, then post from the text file:
lspci -v > lspci.output
Now you should have a text file in your current directory called lspci.output, go ahead and open it:
less lspci.output
And post up the multimedia controller
Cool