IDT HD AUDIO PROBLEM

Hello, I currently own an hp pavilion g4 2304tx windows 8 laptop.
my problem is that whenever my computer is idle, the audio suddenly stop working.

Whenever i click "test" under the playback tab ( under the sound menu ). It says "The device is being used by another application. Pleace close any devices that are playing audio to this device and try again"

I am not playing any audio related files at all. I could make the audio work again by going to device manager then disabling IDT HD audio codec then enabling it again, but the sound is crappy.

i already tried reinstalling the latest driver compatible with my laptop but still, no good.
even tried the shutdown then press power by 30 secs. negative.

as i have observed in other people that are having issues that are also same to me, they've got no responses or sometimes just 1 response after that NONE.

i hope someone would really help me through this. I want a solution.