[Bibio]

Hi, just did a bit of research on your amp, its not a fully HDMI 2.0 spec amp, it was firmware updated to passthrough but it doesnt support HDR. Plug you PC direct into the TV and if you have a second HDMI output plug that into the reciever for sound, that way you'll be able to get HD sound, if use ARC you'll lose DTS-HD, DTSX, ATOS etc.

https://www.dropbox.com/s/gn2n0he0fvnmkx...0.png?dl=0

post 617

 my amp is fully HDMI 2 spec but it does not have HDCP 2.2 which is needed to pass HDR. so yes its new amp time... lol

as i said in my earlier post the HTPC is sending the HDR to the TV when connected directly and playing HDR content with madvr. its either windows HDR switching or nvidia drivers not working correctly that is not dynamically switching on/off the HDR.

i dont know why windows even has an HDR switch as HDR should be turned on/off dynamically depending on content. its what HDR is all about.

after digging about for a while today it seems that the latest xbox has dynamic HDR switching for games. now i could be wrong but is the xbox and windows not the same OS. if it is would in not just be the case of copying the drivers from the xbox to windows to enable HDR dynamic switching.

either microsoft or nvidia need to get this sorted as it seems like neither of them have a clue as to what they are doing. the AV hardware vendors seem to have things sorted so you would think that it should not be that hard to implement.

please forgive if i'm sending this thread in the wrong direction.