No audio device via DisplayPort with UHD Graphics 620

[Calab]

My monitor is connected to my HP ZBook 15u G5 laptop through an HP dock using a DisplayPort cable. Video is working well, but I don't have the option to select the DisplayPort audio in the Windows 10 Sound settings page. The only option I have is "Speakers (Conexant ISST Audio).

I've tried the latest video drivers from AMD and Intel as well as the drivers located on the HP website. None of them provide a playback device for the DisplayPort audio.

Device Manager does show an "Intel(R) Display Audio" device, along with some others, and it is working properly. Display adapters show both the Intel(R) UHD Graphics 620 and Radeon Pro WX3100 adapters.

How can I get audio to work over the DisplayPort connection?

[n_scott_pearson]

We need more information.

Please download and run the Intel System Support Utility for Windows. When you start the utility, select Everything and then click on Scan. Once it completes the scan process, click on Next and then Save. Pick a name for the text file to create and click on Save to create it. You can then close the app. Finally, open a response post here and then, using the Drag and drop here or browse files to attach dialog (below the edit box for the body of your response post), upload and attach this text file to the response post.

...S

[Calab · Accepted solution]

I was able to resolve my problem using the CRU utilily - Custom Resolution Utility. I created a custom extension block for the audio output and it's working now.