Best Answer speechles , 06 January 2019 - 10:36 PM
If the Roku supports HDR you should have settings to control this. You must be using 4K resolution to get HDR. 720P and 1080P are upscaled to 4K retaining HDR. Otherwise without 4K support you get no HDR.
Settings>>Display Type>>4K HDR 30Hz TV
then there is
Settings>>Display Type>>4K HDR 60Hz TV
Are these settings not there on the Roku streaming stick+?Go to the full post