A USB sound card should work.
Here are a few: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=usb+sound+card&x=0&y=0
The Headphone and sound has suddenly stopped working on my Inspiron 1720. I have tried the usual deleting and reinstalling drivers and running the dell diagnostic test and nothing.
Do I try and fix or should I get a new laptop or is there a reasonable work around...