5.1 Channel Surround Sound not working in Windows 10.

I recently upgraded to Windows 10 from Windows 7.

Upon doing so my 5.1 surround sound home theater system is no longer working.  It is a Samsung CT-5550 Home Theater System.

I am using an Optical cable from my Home Theater system into the back of the motherboard.

I have installed Realtek's Windows 10 driver, Gigabytes Windows 10 driver, the driver that came with my motherboard, that previous worked on Windows 7 and fiddled with all manner of settings between all of them and nothing.  It is not working.

When I set the output to 5.1 and run a test, it tells me Test Tone failure.

The highest output I can get is 2.1 channel @ 48hz.  I can get 2.1 @ 92khz but it's spotty.  The curious thing is, when I test the Encoded option for Dolby, it works.  I can hear it out of all speakers.

Please someone, anyone, fix this for me.

For reference, here is what I'm looking at.

This is my speaker system.

When I test the Encoded Format Dolby Digital, the test runs through all the speakers and I can hear the tones.

Dolby Digital Plus is listed as "On" but for some reason did not show in screenshot.

This is what I get once I set both Realtek control panel and default format to both 5.1 channel surround sound and run a test.

All is set as it should be, it's just not working.

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I have the same issue. After upgrading to windows 10 pro x64 (from windows 8.1 pro x64)  I have not 5.1 surround on my Samsung htd 5550. I use optical connection too. In fact when I go to control panel>hardware and sound>sound my Realtek digital output (optical) seems to work, but I can hear only 2 out of 6 six speakers working. The configure button is also greyed out so I cannot select 5.1 speakers. Moreover I can only see two tabs in the Realtek hd manager (digital input, digital output), the speaker tab is gone and there is no way to choose 5.1 sound like I used too. I have already tried removing Realtek drivers, installing the latest 2.79 to no avail. I have gigabyte eg41mf-ush2 motherboard

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I have a Samsung CT-5550.  I use Optical.

Your experience is slightly different than mine.  I can select 5.1 but it does nothing.  I get no sound.  When I run the sound test, I get Test Tone Failure.

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I use My Nvidia HDMI HD audio but had the same issue. When I was on 8.1 it output in Dolby + 5.1 and now it only outputs in PCM 2 channel no matter how I set it up.

Given that we are both experiencing the same issue with different audio drivers, I would suggest that this is indeed a Windows 10 issue. And yes, it is driving me nuts!

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So is this Microsoft that should get the blame or Gigabyte?

Someone's going to be held accountable for the nasty weekend I had trying to fix this **** and failing miserably.

I wasted my time, my energy, and my patience.

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I have also the same issue with the Realtek driver.

I've connected an optical cable from my ASUS Z87-Pro Mainboard to my receiver.

With Windows 8.1 everything went fine with 5.1 sound, but in Windows 10 there comes the same error message as you guys already described.

So the problem shouldn't be Gigabyte.

There is definitively a driver problem.

I've sent already an email to the Realtek Support - I hope this helps

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Is there any other advanced information we might be missing here?  Like maybe it's only those of us with a specific board or chipset that all have the same issue?

I'm not  versed in advanced hardware trouble shooting and driver issues, I'm afraid

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Same issue here. 5.1 surround sound worked perfectly with Windows 7 and does not work at all with Windows 10. Same error with the "Failed to play test tone." notification. 

Almost worth reverting back to Windows 7 due to this problem...

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I have the same issue on an Asus Board with the Realtek sound system. It seems to be a bug in Windows 10. They say that they are working on it but cannot give a time scale as to when it will be fixed, so I have gone back to Windows 8.1

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Same issue with Creative Omni 5.1 Surround. Dolby Digital Live doesn't work, failed to play test tone. Creative released Windows 10 drivers that had no change on the issue.

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Same issue with Creative Omni 5.1 Surround. Dolby Digital Live doesn't work, failed to play test tone. Creative released Windows 10 drivers that had no change on the issue.

Do you have a Gigabyte board?

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Last updated November 21, 2020 Views 212,084 Applies to: