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NO "7.1 surround" via HDMI using Intels HD Graphics 620 on NUC7i3


Hello everyone, I'm new to to this so bare with me

I have a NUC7i3BNB.

I'm having trouble with getting 7.1 surround sound using HDMI.

I have testet my receiver  (Pioneer VSX-827) and it is OK and updated, previously I had an older NUC connected with no problems.

Now I'm only able to hear 5.1 surround? The two back speaker gives no sound from my NUC.

Is there a better driver than the the one from 2018 ( Perhaps some BETA? 

Or perhaps just a part of the driver, the "IntcDAud.sys" also is from 2018 (  

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8 Replies
Super User Retired Employee

For starters, how have you got this hardware connected? The NUC should be connected to the PC HDMI input port on the receiver and the TV connected to the HDMI output port.

As for the drivers, the BN NUCs are very finnicky about the graphics drivers utilized. This is why the drivers are so old. While some folks have had trouble doing so, I run mine with the very latest DCH drivers available from intel. If you would like to try this, the process is as follows:

  1. Download - but do not attempt to install just yet - the latest DCH driver package. Here is a link to this package:
  2. Disconnect the NUC from the Internet. Unplug the Ethernet cable and/or disable Wireless. Note that Wireless should be disabled in such a way that reboots can occur without it automatically re-enabling.
  3. Uninstall the existing Intel Display driver. From Device Manager, click on the Display Adapters section and then right-click on the entry for the Intel Graphics adapter and select Uninstall Device. Checkmark Delete the driver software for this device and then click on the Uninstall button.
  4. Reboot the system, keeping Internet access disconnected.
  5. Install the new driver package downloaded in Step 1.
  6. Reboot the system.
  7. Reconnect Internet access.
  8. Test.

Hope this helps,


P.S. If you do this, make sure that you are careful using Intel Driver and Support Assistant as it may try to revert the driver.


I made a report from update site, it's attached here.


Hi Scott Pearson

THX for your help and input

My hardware is connected using the Pioneer receiver as the distributer. I am only using the HDMI ports. My NUC is connected to receiver input (Game) and my TV is connected to the receiver using the HDMI output port.

I downloaded the suggested IGFX file (igfx_win10_100.9466.exe). Followed the steps in your guide. But that did not work.
Therefore I removed everything related to the IGFX, in the Device Manager and shut down anything IGFX related in the Task Manager.

Still, I have no luck installing the new IGFX software.

Now I am back to the beginning, I have restarted my network adapters and made a reboot, hoping that the automated software updater will find and install the software I uninstalled.

I am open to any suggestions. I sincerely find the 5.1 surround is insufficient in my setup.



Super User Retired Employee

What Pioneer Receiver model are you using?

Also, please run the DXDIAG program (it is built into Windows) and upload its report. I want to see the EDID that the receiver is providing; it will hopefully be indicating that it offers the video capabilities of the TV but its own audio capabilities.



Hi Again

I'm uploading the DX diag file here, along with some other usefull INFO.

My reciever is a Pioneer VSX-827.


Super User Retired Employee

Hhmmm, this doesn't seem to be including the full EDID information (I thought it did). Do you have a 3rd-party tool that can display of the EDID information?

If you want help choosing one, though I have never tried it, I see that NirSoft offers one (for free). I have used some of their tools before, so have at least a modicum of trust. If you want to try it, see here:



Hi Scott

THX again.

Quiet a task this one, I'm on thin ice

NirSoft didn't work for me, seem like it's a Win10 problem.

Insted I used two other kinds of software and made reports. I saved them using WinRAR.

- Advantiv exports

- AnalogWay exports

I hope this is what you are looking for?


Super User Retired Employee

I am afraid that doesn't help; I need a structured display of the EDID contents (to be honest, I just don't have the time or knowledge to study this at the binary level). You can try using Intel's Graphics Command Center (downloadable from the Microsoft App Store), which I know has this reporting capability, but I am unsure that it will work with your older, non-DCH drivers. If it won't run, you can check if the old Intel Graphics Control Panel applet, which was installed with your driver, has this capability (I just don't remember).