According to Intel your VGA does support DTS-HD and Dolby TrueHD bitsreaming and according to Yamaha website your AVR supports the following formats:
Dolby TrueHD Yes
Dolby Digital Plus Yes
DTS-HD Master Audio Yes
So taking this into account go to LAV Audio configuration and check under "Bitstreaming (S/PDIF, HDMI)":
Dolby Digital (AC-3) --> CHECK
Dolby Digital Plus (E-AC3) --> CHECK
Dolby TrueHD --> CHECK
DTS --> CHECK
DTS-HD --> CHECK
After that is done go to MP Codecs configuration and there change your Audio Renderer to "Direct Sound (INTEL HDMI Audio)"
P.S. Since i don't use intel vga i am not sure how intel calls their HDMI Audio Device.
When that is done play a video file which u know has one of these codecs for audio.
If everything is done properly ur AVR should report which codec ur file has.
Dolby TrueHD Yes
Dolby Digital Plus Yes
DTS-HD Master Audio Yes
So taking this into account go to LAV Audio configuration and check under "Bitstreaming (S/PDIF, HDMI)":
Dolby Digital (AC-3) --> CHECK
Dolby Digital Plus (E-AC3) --> CHECK
Dolby TrueHD --> CHECK
DTS --> CHECK
DTS-HD --> CHECK
After that is done go to MP Codecs configuration and there change your Audio Renderer to "Direct Sound (INTEL HDMI Audio)"
P.S. Since i don't use intel vga i am not sure how intel calls their HDMI Audio Device.
When that is done play a video file which u know has one of these codecs for audio.
If everything is done properly ur AVR should report which codec ur file has.