Why Window 8 does not detect my HDMI output connection?

If your computer is having problems with a recently installed device or other hardware, try using the Hardware and Devices troubleshooter to fix the problem. It checks for common issues and makes sure that any new device or hardware attached to your computer was installed correctly.
Follow the steps given below:

a) Press Windows + W together.
b) Write Troubleshooting in the search box right up corner and hit enter.
c) Click on Troubleshooting tab.
d) Click on view all option on the upper left corner.
e) Select the Hardware and Device options from the list.
f) Click Next to run the Hardware and Device Troubleshooter.

So this solution did not work

So far, I've tried:

1. Using a brand new HDMI cable

2. Uninstall and install Intel HD 4000 Graphics Driver

3. Uninstall and install NVidia Gefore 765M Driver

4. Using the "detect" option in Screen Resolution

5. Using NVidia's "control panel"

6. Updrading BIOS driver

Nothing has worked. It's like if the HDMI port didn't exist at all,  and "screen resolution" is trying to falsely detect a VGA monitor, I spent around 6 hours yesterday trying to resolve this.

Hi,

For us to assist you with this issue we require the following detail.

what is the make and model of your computer?

I suggest you to update the chipset drivers from the manufacturer's website and follow the steps given below to check if you can see the HDMI output under sound after you have made all the connections.

a) Right Click on the Volume icon present on the right hand bottom corner.

b) Click on Sound, under the Playback tab check if it shows HDMI Output entry. Also, provide us the screenshot of this Window. Refer the picture given below.

Follow the steps given in the link below to provide us the screenshot.

How to include a screenshot in your post

http://answers.microsoft.com/en-us/windows/wiki/windows_other-windows_programs/how-to-include-a-screenshot-in-your-post/2594b08e-32a3-476a-85a6-b021181be7e4

Let us know the status of the issue and the asked details.

I have been having the exact same issue and spending hours to resolve it!  Above is my screen shot.  I tried all the same things as stated in this post.  The volume screen doesn't show the HDMI either.  This is a new PC also, so it shouldn't be having an issue.  Detect Screen does not work.  I have NVidia for my monitor and the HDMI Motherboard port for my additional screen.  I have it plugged into a Sharp TV.  I did this with ease with my old PC.  This isn't working.

Any help is greatly appreciated!

Thanks!

Hi Jetson,

I apologize for the delay in response. I would suggest you to disable the on-board audio driver and check if it works with the Nvidia drivers. To do so, try the following steps.
1. Press Windows + X on the desktop screen and click on Device Manager.
2. Expand audio category.
3. Right click on the on-board driver for audio and click on disable.

Make sure, not to disable Nvidia drivers. Anything other than that, in the same category can be disabled.
Also, make sure the HDMI is connected to the Nvidia port and not the motherboard port.

Try the steps mentioned above and let us know if it resolves the issue. Hope this information was helpful.
Thank You