HP Pavilion dv7-2177cl No surround sound after installation of Windows 7! Worked in Vista though.

I did an install of Windows 7 laptop came with Vista. I used all of the HP drivers from there site and everything is up-to-date. I use my laptop as a media player and have it connected to my TV via an HDMI cable and I have my TV connected to my receiver via an optical cable. It worked perfectly when I Had Vista installed and now it’s only stereo no matter what I am playing. Ive tried everything I can think of and nothing works. I cant even get the subwoffer thats built into the laptop to work.
After searching the web I see this is a common problem for all users across all platforms. Does anyone know if HP fixed this issue??? Or does anyone know of an update for the IDT HD Audio Codec that will fix it?

Hi vishwa123,
Welcome to the HP Support Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I saw your post regarding the problems with your notebook after you close the lid and reopen it. I will be happy to help. I have a couple of things for you to try. First we are going to reset your power schemes to do that go to your Start Menu and search for cmd and hit enter. Then in your Command Prompt type “powercfg /resetdefaultschemes”. You will then have to go change you power plan settings so that when you lose the lid it stays on. This HP document Managing Power Options will show you if you need a visual.
Do you use the fingerprint scanner when you normally log on to your Windows?
Thank you,
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

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Serial number: {Private Information Removed}
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