Front audio jack works but not not rear audio jack

Hi, 

Is the issue only with the logitech speaker or have you tried another set of speakers or headsets  at the rear jack.

Regards

Are you sure you are using the green speaker socket?

If you indeed have a sound card, you should have two sets of sockets. Try the other set.

Thanks for the replies. First, I have problems with other speakers as well.

As for sound card, I misspoke. I have only one set of jacks in the back. I know that I plugged in to the green jack. That was the first thing I checked.

One possible clue. I had another speaker that did initially work. However, after updates speaker stopped working. I don't recall if they were MS or other. I tried speaker in a laptop (both have Win 8.1) and it didn't work there either. I checked Logitech speakers on the laptop and they work.

Is there some Device Setting that could be the problem. With my very limited knowledge I found no clues and even set the AMD sound properties back to default..

Again, any ideas would be most appreciated.

I would like to blame it on Win !0 but have yet to install it on my computer. Sorry about not identifying computer but I have an XPS 8700. I bought it last year.

If driver problem wouldn't both front and back  jacks fail to work?

Thanks for your help.