NVIDIA HDMI output - not plugged in (?) = no sound on the TV, but great picture!

Hello

I'm not very experienced in the computer, but I know now that the connection from your laptop to a flat screen HDMI cable TV is not as easy as it should be...

Description of the problem: no sound, but the big picture on the TV when connecting to my HP dv7 entertainment PC through HDMI to it. Specifically: for NVIDIA HDMI output icon is grey and not active in the "pilot sounds and reading - menu" - you can not simply give (other icons that are active are: speakers and headphones double, double independent headphone & SPDIF). You can also see the TV under "Control panel" > "Devices and printers" - so the tv is connected. In Device Manager, I see that I have 2 sound processors (?) "IDT High Definition Audio CODEC" and "NVIDIA High Definition Audio" - I don't know one that is used for the HDMI connection.

I have at my own risk installed the latest driver (?) for my graphics (NVIDIA Geforce 9600 M GT) - before I did, the NVIDIA HDMI output icon participated actively in the "... sound"-menu (so you can turn it, etc.)- but no sound on the TV and then either...

I suspect there to be something wrong with the drivers for my graphics card or processor... or maybe you can't send sound to the tv with my cable? It's a standard HDMI cable...

Laptop model nr: HP Pavilion dv7-1094eo

Operating system: Windows 7 Professional 64-bit don't know ServicePack... .

Graphics card: NVIDIA GeForce 9600M GT

HDMI cable, tv LCD Philips model: 37PFL7605H

If someone could help please advise me on what drivers to install or anything else, I would be very grateful!

/ Marie

First do you uninstall IDT High-Definition Audio CODEC Driver and NVIDIA GeForce 9600 M GT drivers by going to

Control Panel\Programs\Programs and features.

In case if request you a restart of the computer, please make sure that restart you one after the other. Do NOT avoid restarting the computer.  So go ahead and download view updated and audio drivers from the HP website here.

Yet once, after installation if you are prompted to restart the computer, go ahead and restart the computer. Once done, go to:

Control Panel\Hardware and the sound and click on sound. On the Read tab, right-click on the white (empty) space and you will see 2 options (see the disabled devices and show disconnected devices). Make sure that both options are checked for all devices listed reading.

Now, right click on the option to output HDMI device and make sure that the option "set as default device" is selected for the sound of the external display during playback picture on external monitor.

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