“I have my cable box plugged into HDMI 1 and the hdmi dynamic range setting is greyed out. The other hdmi ports it is not. I have Xbox and firestick plugged into HDMI 2&3 and the setting is there. Anyone know why? Thanks in advance.”

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• this is just my opinion, but i believe that most cable boxes don't have HDR capability. i do know that xbox and firesticks do though

  Answered by christian 8 years ago

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• Please call us at 1-888-935-8880 so that we can assist you with your television.

  Answered by HisenseProductExpert 8 years ago

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