Is there anything playing for you to hear?  (Sorry could not resist)

 

Have you checked the Device Manager to see if the sound card has been properly installed?

same problem...

 

i've already installed the new driver.....

And the Device manager indicates it is installed correctly?  Is the Volume control set to Mute?

the device is correctly installed....and working...

 

where can i see if is "mute"

 

in the control panel-sound is working at full regime....

Can you get sounds without the headphones (thru the speakers)?

yes!

 

this is the strangest thing ever seen!...or heard?hehehe

Nothing wrong with the sound acrd so the problem is between the jack and the sound card, possibly a loose connection.

So what should I do ? wait for update or update my driver because i dont know how can i update my sounds card driver.

Hey

 

I know its the Vista problem because before vista I had XPS and i was fine and after installing the vista i got this problem. but i didnt update my sound driver because I dont know whats my sounds card and how can i update it.

 

You try it can you hear anything in your headphone?

 

Oh i forgot to say , I tried both Plugs and neither work.

You just posted that sound will come out of the speakers so its not the sound card.  Are any devices showing not installed wihin the Device Manager?

I too am having the same problem -- sounds works fine out of my speakers, but headphone jack is silent. I have Vista Ultimate on my Dell Inspiron 6000 laptop. I have been back and forth for 4 days now with Dell tech support and they keep telling me to install the latest drivers (below) which as you can see from the date are from 2005.

 

http://support.dell.com/support/downloads/download.aspx?fileid=128550

 

The Dell support folks don't know that this download is bogus, but they keep telling naive folks to try it. I basically have given up on Dell and contacted SigmaTel directly. If I hear back from them with some info on updated drivers, I will pass them along.

I have an Inspiron 9300 with Vista Ultimate. I'm having the same issue of no sound from the headphone jack after the Vista upgrade. I have downloaded and installed the latest sound drivers for Vista from the Dell support site and installed with no correction of the issue. Is there a solution as I haven't found one in these threads? If not, what gives Dell? Some of the posts about this issue date back to October 2006. It would seem like Dell would have resolved this before the release of Vista to the public.

I have vista home premium upgrade on and internal speakers work fine, when I plug in the

headphone it cust out internal speakers but there is no sound on the headphone jacks.

thanks, it worked ....