Just checked and can confirm that PowerDVD20 Ultra OUTPUT Atmos and DTS-X tracks via Intel HD4600 integrated graphic card on my Laptop and my Yanaha RX A3050 correctly recognise it (provide NONE Decode Audio option been sellected).
P.S. It is worth changing the HDMI cable to be sure it is not the issue.
P.S. In fact PowerDVD ULTRA 18 & 19 also output Atmos and DTS-X tracks correctly eithr via NVidia RTX 1080 and Intel HD4600
THIS is for Bluray DIGITAL MEDIA.
P.S. I do not know if make difference BUT forgot to say that I output 4K BluRay Media to 1080p TV

Saving to Upgrade my TV this Black Friday / Christmas sales
But the question was about the sound so I think it should not make difference here.
This message was edited 1 time. Last update was at Jun 15. 2020 04:48