Surface Pro 4 dock will not pass 5.1 audio

Jeff Kidman

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Apr 12, 2020
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I have seen a number of posts on different forums with this same issue, but no solutions so far.

I have a surface pro 4, and just added the dock. when I run the mini displayport from the surface into my AV receiver I get 5.1 audio out, no problem. When I use that same cable out of the dock, I do not get 5.1 audio. Stereo only.

I have the latest windows update, and the latest firmware for the surface and the dock.

Anyone found a solution to this?

Jeff
 

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