Asus g771jm audio combo jack problem ? Please help

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Hey. I have a problem with my external mic. This is it:

http://www.tj-computers-limited.co.u...06-400x400.jpg
It has a regular jack conector.

When i plug in in the combo jack windows does not recognize it. In audio settings in control pannel at recording appear only the internal mic.(i've done that thing with right-click) Also when i plug in nothing happens.

I also have a gaming headset with mic. Thet have 2 jack conectors , one for mic , one for sound. I know i need an adapter to funcion both , it's possible ?

When i plug in only the jack with the sound , the headset sound work , not the microphone. When i plug in only the mic , nothing happens like the external mic.

So my pc not recognize neyther the external mic , nor the headset mic.


WHY ? i have realtek updated from asus site for my laptop.

Please help , i need to use an external mic.

Sorry for my english.