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Intel Display Audio doesn't offer 5.1 as a choice

Poulsbo2
Beginner
538 Views

I have connected my NUC7i5BNH to my Bose home theater receiver and new LG 4K OLED TV.  When I connect via HDMI, the Intel Graphics Settings shows it as Bose Display which only offers HD1080 instead of 4K.  I suspected this was caused by the Bose receiver not passing the proper IDs through, so I bought an HDMI to HDMI+Optical splitter. I connected the HDMI directly to the TV and ran the optical connection to the Bose receiver.  This solved the video issue and I now get 4K. However, the Intel Display Audio driver was automagically installed and now I only get Stereo as an option.  Is there a way to get 5.1 audio? 

I downloaded the SSU scan utility and ran it. The report is attached. Let me know if there is anything else I should send.

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n_scott_pearson
Super User Retired Employee
515 Views
In a nutshell, the answer is no. The TV is going to report its capabilities, which only include 4K+stereo. Same goes for the receiver; even with a 4K TV downstream, a 1080p receiver is still only going to report 1080p.
There are two possibilities for resolving this. First and best, get a 4K receiver. Second, some TVs support downstream connections (of sound bars, etc.) and will pass on these capabilities to the input.
Hope this helps,
...S
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Poulsbo2
Beginner
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Scott,  thanks for your quick response.

Actually, this TV (LG OLED65C1PUB) does support surround sound modes including Atmos.  I get the part about the receiver only reporting that it only handles 1080p, but since I am bypassing the receiver with the audio (via the fiber optic half of the splitter).  I don't get why, in this case, the driver doesn't see the audio as coming from the NUC (independent of the TV) which should support multi-channel modes as well.

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n_scott_pearson
Super User Retired Employee
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Have you verified that this HDMI+Optical splitter will actually return EDID data that indicates that the abstract downstream device supports surround sound (5.1 or otherwise)? There are tools around that will display the EDID data. I can only suggest that you look with one of these.

...S

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