No sound through headphones, speakers working

[Chloe]

I have an ACER 5570 notebook with Vista. Up until yesterday my headphones
worked fine. Now when I plug them in I hear nothing. Notes-

-An information box pops up and says a jack has been plugged in.
-There is only one place in the computer for the headphones to plug into,
and it says SPDIF next to it.
-The Speakers still work when the headphones are unplugged.
-There is no external control on the computer for volume.
-The headphones are in working order.
-The driver is RealTek high definition audio. It is up to date.
-Ive tried restarting. No luck.

Id love it if anyone could help me, or at least point me in the right
direction.

 

[Mark L. Ferguson]

There is a setting to output two different audio streams to front and rear
sound outputs.
RealTeck, speakers tab, note upper right corner link for advanced settings.

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Mark L. Ferguson

..

 

[Chloe]

Thanks for your reply Mark, but I had no luck. The advanced settings link
only has options for Recording Device / input.
Have played around with the other settings on the page too, but still
nothing

 

[pressed1]

The same thing happen to me I also have an Acer on vista. But I need this
thing to work right now. My speakers do work, i went in the driver and did
the test. I heard sound but that was the only sound i heard. o matter where
I go on line or media player, there is no sound. I read somewhere that some
of the virus protecting programs have gliches that can cause no sound on
pc... Im going to take this thing back in the morning.