Headphone issue

Hi Guys,

I have 2 JBL speakers hooked up to my desk top (windows 7) and they work fine, however when I plug the headphones in (front of the speaker) I do not get any sound through the headphones.

If I press the jack plug in 1/2 way I get sound through the headphones however it also continues through the speakers.

I have checked the speaker setting though realtek and control panel and everything seems good.

I have also tried a couple of sets of headphones including top of the range AKG's and it makes no difference, so not sure why I am having this trouble.

Thanks in advance for you help guys it is much appreciated.

ps I have spent 1/2 hour trying to find the answer in the forum with no luck so apologizes if this questions is posted somewhere else as I could not find it.
Ps

 

Greetings, acapro.

This sounds (pardon the pun) more like a hardware problem with the speaker jack. Have you attempted to plug the headphones into your sound card's or onboard audio's headphone jack?

Also, another shot: I had the same symptoms once (mine are Boston Acoustics) - the headphones would not work when plugged into the master desktop speaker until I rebooted. Have you restarted your machine lately?