Hello,
This post is for people who are having a very specific issue.
Please see
this before you try this fix. The issue this fix addresses was on an HP Compaq 515 running on Windows 7 Home Premium.
I have laptop with working speakers. When headphones are plugged in, they are detected but do not play music. You cannot set the headphones as the default playback device even if you disable the speakers. Reinstalling the audio drivers does not work
Solution:
-Open "Add or Remove Programs"
-Uninstall IDT Audio
-Restart computer
If this solution doesn't work for you and you would like to undo it, please use System Restore
Hope this helps someone!
I think it is the hardware problem.. and may too cost..
But now it is solved...
thanks a lot dear dude..