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Enthusiast
Posts: 2
Registered: ‎01-04-2018
Message 1 of 4 (921 Views)

UBP-X800 scaling HDR to SDR?

I have been experiencing a problem with my UBP-X800 bluray player that I am hoping this community can help me with.  After setting up my bluray player and adjusting settings I discovered that my only 4k HDR movie, Spiderman Homecoming, was being scaled down to 4k SDR.  I determined this from the video playback menu.  Instead of saying 4k/24p HDR it says 4k/60p HDR->SDR.

 

I believe the video output settings of my Marantz sr5011 receiver are to blame.  The video output settings are set to the default 4k setting with a 60p frame rate output.  As far as I am concerned, there is no way to adjust the 4k frame rate output to anything but 60p.

 

If I leave the 24p setting for UHD/Bluray as auto on my bluray player the picture significantly stutters and it is unwatchable.  I can only get a clear picture if I leave the setting off.

 

Has anyone else experienced this?

Apprentice
Posts: 12
Registered: ‎12-14-2017
Message 2 of 4 (883 Views)

Re: UBP-X800 scaling HDR to SDR?

Hi can you select auto as your resolution output on UBP X800 instead choosing a fixed 4K which prevents the scaling capability of the player. The receiver may have a fixed refresh rate, but the player might adjust to the receiver if the output mode is set to Auto. Not sure if this works though!
Enthusiast
Posts: 2
Registered: ‎01-04-2018
Message 3 of 4 (867 Views)

Re: UBP-X800 scaling HDR to SDR?

Thank you for the suggestion!  The resolution output was already set to "auto."  

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Apprentice
Posts: 12
Registered: ‎12-14-2017
Message 4 of 4 (855 Views)

Re: UBP-X800 scaling HDR to SDR?

Hi,irrespective of the refresh rate max applicable to the TV or the AVR the UHD bluray / bluray player outputs to 24fps 4K or 1080p. Did you try by passing the AVR by connecting the player directly to the TV to check the display is 4K@24fps? If it works than the issue is with the AVR output settings. If there is a mode to switch off the AVR video output to Auto it could adjust to the UBP X800 resolution!

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