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HDMI monitor is not playing sound

Tags:
  • Speakers
  • Monitors
  • HDMI
  • Graphics
Last response: in Graphics & Displays
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August 22, 2013 8:46:28 PM

I have an LG monitor with speakers as well as a GTX 550ti that has an HDMI port. I was using a VGA cord, but recently switched to HDMI in order to be able to use the speakers. The volume shows that it is working, and I have fiddled around with various Nvidia (graphics card manufacturer) and Realtec (audio stuff, not exactly sure) drivers, but as of yet, I have been able to play sound through the monitor.
Any help?
Thanks

More about : hdmi monitor playing sound

a b C Monitor
August 22, 2013 8:54:09 PM

What is the make and model of the monitor? Does the monitor actually support HDMI Audio or does it require a separate Audio cable. Check the specs of the monitor to make sure that HDMI Audio input is supported. Also, make sure that your HDMI cable supports HDMI Audio as well.
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a b C Monitor
August 22, 2013 9:19:18 PM

Have you verified that the HD audio device on your NVIDIA graphics device is set as your default audio output? Windows may still be routing sound to your normal sound hardware, if it hasn't been told to route it to the audio output on the graphics device.

Right mouse-click the speaker icon in the system notification area and select Playback devices from the context menu.

In the Sound dialogue box that opens, left mouse-click the HD audio device on your NVIDIA graphics device, and click the Set Default button. This instructs Windows to send all sound output to that device first.

If you don't know which device is the correct one to choose, you can right mouse-click on each listed device and choose Test from the context menu. Devices that are not seen as connected will have the Test option greyed out.
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August 22, 2013 9:53:02 PM

The monitor and cable both support sound. As for the suggestion about the speakers, I tried that, but the monitor does not register as a speaker.
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a b C Monitor
August 23, 2013 12:31:34 AM

The monitor is not supposed to register as a speaker. My suggestion is about instructing the computer on which audio output device to send the audio to.
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August 24, 2013 8:44:15 AM

how do I do that? The volume mixer doesn't register that it is a valid sound output.
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a b C Monitor
August 24, 2013 3:43:03 PM

I gave instructions above for how to do that. :-)
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August 29, 2013 6:35:45 PM

"In the Sound dialogue box that opens, left mouse-click the HD audio device on your NVIDIA graphics device, and click the Set Default button. This instructs Windows to send all sound output to that device first."
the problem as I have been trying to say is that the only thing that appears when I do this is my headphones.
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August 29, 2013 7:26:36 PM

Try this. Right click on the speaker icon in the lower right corner of windows. Pick "playback devices". There should be choices of output in the "playback" tab. If the checkmark is on headphones choose hdmi.
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September 2, 2013 7:15:01 AM

The problem is that there is only the headphones in that list. There is no HDMI to choose.
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September 2, 2013 7:16:22 AM

Never mind, the problem was that it was disabled by default, so it didn't appear until I clicked show disabled devices.
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September 2, 2013 7:20:56 AM

now that I've enabled it and set it as default, no sound plays at all.
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a b C Monitor
September 3, 2013 4:51:45 PM

Before you power your computer on, you should make sure your screen is turned on, so your graphics card detects the HDMI connection correctly.

You might also verify that the audio output is enabled over your HDMI connection.

Right mouse-click a blank portion of the Windows Desktop and choose NVIDIA Control Panel from the context menu.

In the NVIDIA Control Panel window that opens, left mouse-click the Change resolution item under the Display heading.

Under the heading 2. Apply the following settings. verify that the Connector: selection lists HDMI with Audio Enabled.
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September 3, 2013 6:45:47 PM

it says the connector is HDMI-HDTV, but it doesn't say anything about audio, however, when I go to set up digital audio, it recognizes my monitor under HDMI
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a b C Monitor
September 3, 2013 8:05:03 PM

I'm afraid I am out of suggestions for the moment. Not currently running NVIDIA in any of my computers at the house, and from what I read, NVIDIA has problems properly detecting audio capable devices over HDMI connections under some circumstances, and in other cases the audio is intentionally disabled where it may cause some sort of screen corruption. It may be the case for you that NVIDIA's drivers are not correctly identifying that your screen has audio, and therefore disabling the HDMI audio output, or detecting an incompatible screen. There should be some sort of manual override, but really the best I can do at the moment would be web searches, which you can also perform. Good luck, and I do hope you get to the bottom of things. I would make sure you have the latest NVIDIA drivers from here:

http://www.nvidia.com/Download/index.aspx?lang=en-us

and then scour the NVIDIA Control Panel for anything related to connection type (HDMI) or audio.
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a b C Monitor
September 4, 2013 4:05:52 PM

Well, that link, which I just double-checked takes me straight to NVIDIA's driver download page.

Here's a different link:

http://www.nvidia.com/

Select your country of origin, if you are asked. At the top of the page, point to Drivers, then select All NVIDIA Drivers. This should direct you to the page I had linked to.
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September 4, 2013 4:52:11 PM

I just tried opening the link in a private browser and it worked, for some reason nvidia's website does not like my computer
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a b C Monitor
September 4, 2013 5:26:01 PM

Sounds like it's not just their website. :-)
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July 25, 2014 3:50:27 PM

adgjlsfhk said:
I have an LG monitor with speakers as well as a GTX 550ti that has an HDMI port. I was using a VGA cord, but recently switched to HDMI in order to be able to use the speakers. The volume shows that it is working, and I have fiddled around with various Nvidia (graphics card manufacturer) and Realtec (audio stuff, not exactly sure) drivers, but as of yet, I have been able to play sound through the monitor.
Any help?
Thanks


So I woke up this morning with no audio coming from my display with the HDMI jack plugged in. I tried switching cords but not devices so my conclusion was that the HDMI port must be malfunctioning. Being a hard-headed, mouth-breathing, technophobe, I probed my computer with the grace of a linebacker breaking tackles on his way to a touchdown, but for me there was no end-zone in sight... funny thing about insight... it isn't something that develops over time or with practice, rather, it is a moment of inspired cognitive functioning the likes of which generally result in a triumphant "AHA!"

My AHA moment came from reading this thread and executing the directions given even though I had tried each iteration at one point or another... My insight came in a rush of contradictory feelings regarding the hour and a half spent poking around the innards of my computer like a blind man performing an appendectomy...

In short, my problem was fixed when I found the TV remote and turned the volume up.

Cheers!
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a b C Monitor
July 25, 2014 6:44:40 PM

Thanks for adding that, jobobjr! It's good to be reminded to check the simple stuff too. Like a lesson from college many years ago, when after an instructor had swapped the dean's motherboard in her computer in a vain attempt to resuscitate it, to realize the computer's user had inadvertently turned off the power strip with her foot. He came into class to teach us his lesson, as he didn't want it to go to waste. :-)
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!