Audio Jack realtek problem

[sidd1]

Hey when i plugin my headphones to CPU it works fine. But when i connect my headphones to an extension chord(1 m ) and chord to CPU.. audio goes down and sounds rubbish ! both my headphones , extension chord and input jack are in great condition. Please HELP !!

 

[popatim]

I would say that you have a poor quality extension cord with a high resistance.

 

[sidd1]

I have checked everything my friend. I think some drivers are missing . I dunno which.