The sound device name is not that accurate. It can be anything (your TV/PJ or AVR). On my laptop, it even shows up as an old AVR that I have already replaced. If the TrueHD and DTS-MA showed up in the supported formats, you are fine. The problem is probably at playback software side.
As for your BD player story, you should know most BD players default to NOT bitstream HD Audio at all. You will have to make configuration changes (typically turn off secondary audio) to make it bitstream.