NVIDIA HDMI output "Is not connected" - Audio does not have TV

I have a HP HDX X18T-1200 CTO Premium Notebook PC.

I am running Windows 7 64-bit, Service Pack 1.

Some time previously, the audio has stopped working when you plug an HDMI cable to my tv (perhaps after updating a driver?). It always occurs on the laptop itself.

Under the control panel: sound, the output device HDMI NVIDIA said that it is "not connected" and is grayed out so I can't set as default device. I can see the video output to the TV, but the audio is not go with her, even when you set the video mode for projector only.

I tried to uninstall the IDT High Definition Audio CODEC and drivers NVIDIA High Definition Audio from the Device Manager, but that did not help. The IDT driver is version 6.10.6276.0, and the Nvidia is 1.2.24.0. Both are as up-to-date as possible I think.

I work in the COMPUTER industry, so I'm not a total fool when it comes to this sort of thing, but it's me confused. Any help would be appreciated. Thank you!

So here's what I discovered...

The link to the Nvidia site provided by maxpower757 also had a link to this page on this topic: No. HDMI audio when connected to a TV by Philips HD graphics card. In case the link stops working at some point, this is what he said:

  • Some Philips HDMI screens may have problems with some older NVIDIA graphics cards that could lead to corruption of the image when the audio over HDMI is turned on. In this case, the NVIDIA driver attempts to identify these views and default settings to disable the audio if necessary. To re-enable audio (note that this could cause corruption of the image), go to the NVIDIA Control Panel, and then select the page resolution of changes in the View Menu. Select your HDMI display in step 1, and then change the connector in step 2 of "HDMI-HDTV (compatible Audio)" and select apply.

But when I went looking this "connector" setting, it was not found. I upgraded my drivers to the latest versions, and it was there! When I put it to Audio-enabled, it pops up a warning, and after clicking on Yes, I could open the peripheral reading window and set the HDMI as the default device.

Hooray! It works again! Here is a screenshot of the setting you would look to (notice the connector set in the middle of the window).

Tags: Notebooks

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