Just in case anyone else runs across this issue, I have just spent a few hours trying to figure it out as well. For the OptiPlex 9020 I was using it turned out that the front audio connector was ...
For the past month, my laptop (Dell XPS M1210) has been having audio issues – beeping at me when the sound is muted, unable to play You Tube videos or DVDs but able to play songs in iTunes. Windows ...