7 Replies Latest reply on Feb 12, 2018 12:56 PM by leyvin

    HDR movies not working on my PC with any AMD cards

    moose

      Hello, First of all I'd like to say I bought a Nvidia GTX 1060 when they first came out and HDR games and movies both play fine on my pc. I then bought a Radeon RX 580 GTS XXX Edition 8GB and couldn't get HDR to work at all So I sent the card back. Card cost me $425. I then purchased a Radeon Vega 64 8GB and could only get games to display in HDR everything I have tried to do to fix it or get it working has failed. I have a very hi-spec pc that can run everything. I contacted AMD and to see if they could help with the problem they asked me a few questions about my setup and to supply them with my dxdiag file which I did and in it says that my Vega 64 is HDR compatible. They then passed my problem onto their expert technicians who replied by sending me to a Microsoft link about HDR problems. I had already been to the link and it didn't help me at all. They now don't answer any of my questions. I paid $975 for the Vega 64 and $425 for the RX 580 and neither of them play native HDR movies. As I said I have a GTX 1060 and all HDR works as it should. With the 1060 I turn on HDR in the windows setting (have advanced colour turned on in the tv settings) use powerdvd 17 to play the HDR movies and the tv (LG OLED65C6P) switches to HDR and the movies look great. The desktop looks dull but I can live with that if the movies play in HDR. With the Vega 64 I can turn on HDR in windows play the HDR file through Powerdvd 17 the HDR signal does not come up, the movie looks washed out but If i hit info on the tv button it says it's in BT2020 and HDR but it's not working at all. If someone can help please I'd really appreciate it as the experts couldn't help Im almost ready to throw a $975 card in the bin and never buy a AMD product again.

      Im running Windows 10 Pro 1709 Version 16299.214

      Use Powerdvd 17 to play the HDR content

      Display settings are set to 12bpc YCbCr 4.2.0 in amd software (I use the same settings in Nvidia control panel with the GTX 1060)

      Any other info you need I'm happy to provide.

      Another couple of strange things I noticed in the AMD software is that it says that HDCP is disabled and under the audio settings panel it says that HDCP is NOT supported. When I use the GTX 1060 in the settings they all say that HDCP is supported for the card and audio.

        • Re: HDR movies not working on my PC with any AMD cards
          leyvin

          Enable GPU Scaling., some displays don't support 1080p HDR and with this option disabled Radeon Graphics won't automatically Upscale to 4K ... you'll also want your desktop to be 2160p.

           

          I'd also strongly recommend switching to 10bpc (12bpc is for Wide Gamut Colour / Professional Displays) as well as YCbCr or RGB (which I'd recommend RGB) to 4:4:4 (Full / PC Standard) Mode.

          This should resolve all of the issues.

            • Re: HDR movies not working on my PC with any AMD cards
              moose

              Hello Leyvin, I thank you for your quick reply mate. I just Enabled GPU Scaling (which was turned off) tried HDR and it didn't work. Set it to 10bpc YCbCr and it didn't work. My resolution was already set to 2160p. Tried RGB and 4:4:4 (Full / PC Standard) Mode (which is only 8bpc not 10/12) that didn't work either. :-(

                • Re: HDR movies not working on my PC with any AMD cards
                  leyvin

                  LG OLED65C6V Product Support

                  Try updating the On-Board Software., the package also includes Windows/Mac Drivers which also might help, but I'm curious... there are Multiple HDMI (2.0a) inputs, however it's common that only one of these will be PC Compatible (Listed HDMI / DVI on the back) which just signifies a switch to PC Display Mode if there is such a signal detected.

                   

                  I'm not familiar with LG., but I know with my Samsung Displays that I either have to use the DisplayPort or a specific HDMI (DVI) Connection otherwise it remains in TV / Game Mode. As such if you still have your GTX 1060 connected in said HDMI Port., and your RX VEGA in another HDMI Port; this might explain why HDR / HDCP are inactive... as this is something that occurs on my Samsung secondary HDMI, although HDMI Link (which is Inactive on the HDMI/DVI Port) does work.

                  I couldn't tell you why though., probably some incompatibility between VESA and HDMI approaches.

                  That could be the issue here, so try swapping the port to see if it resolves the issues.