HDMI sound no longer working on HP Pavilion running Windows 10

[totomotx]

My Pavilion a6300f PC used an Nvidia 7100 video card. This was not compatible with Windows 10, so I upgraded to GeForce 8400gs. Everything works fine but the sound. I believe when I first upgraded, the sound on HDMI was working fine. Then I updated all drivers and Windows did its updates. I found my headset did not work. After searching and trying different things I went into the Bios and changed my on-board speakers from auto to enabled. Yeah, my headset works! Then I tried to play a video and there is no sound coming through my monitor speakers (WinBook 32MO) using the HDMI cable. I do have sound on the jack for portable speakers on the computer itself using the plug in speakers on the Realtek system. Why can't I get the HDMI cable to work again???? I have tried uninstalling all sound drivers and reinstalling, I have tried every other suggestion I can find on the Windows 10 forum. Changing the BIOS back does not help. I don't know if this is a Windows problem, or an Nvidia problem, or an HP problem, or just my error someplace. I would appreciate any help. Thank you.

 

[drtweak]

Windows only supports sound output on one device. Go into the Control Panel and go to sound. Then set the default output to the HDMI.

 

[totomotx]

Windows only supports sound output on one device. Go into the Control Panel and go to sound. Then set the default output to the HDMI.

Thank you for making time to respond. This is not an option as Windows does not recognize that I have an HDMI connection! The only options I have under sound in control panel is NVidia HD or Realtek HD. Under the Realtek HD manager I have only the standard Realtek sound options of Headphones, HD mixer (which has nothing plugged in and therefore is not an option) or Plug in speakers. No HDMI option. Under NVidia control panel, no HDMI connection either. All NVidia recognizes under the display is a non-PNP generic monitor, not the PnP HD WinBook 32MO monitor it is connected to. Connecting via DVI cable, it recognizes the monitor and gives me the high resolution it is capable of, but there is no sound unless I plug in my small "antique" computer speakers to the jack on the old sound card. There is no sound connection on the NVidia 8400gs interface. Only DVI, VGA, and HDMI. Any additional help is appreciatd

 

[totomotx]

Also, just realized this is in the storage thread. How do I move this to the hardware or windows 10 thread?

 

[drtweak]

A mod will have to move it i think. Did you download the latest drivers from nvidia? I'm wondering is a 7100 is just too old to use with windows 10

 

[totomotx]

I was told the 7100 will not work with Windows 10. I upgraded to 8400 and have been having a problem with it using HDMI.

 

[drtweak]

What kind of problems? Same issue or new issue?

 

[totomotx]

What kind of problems? Same issue or new issue?

Same issue. I just went with DVI and said I am tired of fiddling with it. When I move and set up my system again, I will give it another shot, but I gave up.

 

[drtweak]

haha yea sometimes it's not worth it. Really the only advanced HDMI has over the DVI is for video and sound you only need 1 cable vs 2 or the ability to plug it into a TV. Performance or visual wise there is no advantage of one to the other