Dim HDR and Dolby vision picture quality
I recently bought the roku ultra 2020, I discovered when I watch HDR10 or Dolby vision content, it is very dim and has low brightness in netflix, apple tv and amazon content. I compared to my nvidia ...
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I too purchased the Roku Ultra 2020 with Dolby Vision. I noticed immediately that my picture was much dimmer than usual. When auto detect on display setting is selected, it set Roku to 4K Dolby vision. I changed it back to 4K TV and the picture is much better and brighter. Feel like I purchased this 2020 version needlessly. Channel selection is much faster, so I guess I’ll keep it, but disappointed with Dolby Vision.
As of Version 10 of the roku software, setting the Display Type to 4K is the only way to get a normal, not dimmed picture. This setting disables HDR in any form so that’s very disappointing. I have an LGCX with the latest firmware and don’t have this issue with their apps. All LG Web OS apps run with Dolby vision or HDR 10 with a normal picture
Setting my Ultra to regular HDR is not bad but Dolby Vision is really dark on my LG BX OLED. Obviously running 4K only is brighter always because no HDR at all.
While my LG is a standard LED set, not OLED, I find both HDR and Dolby Vision to usually be noticeably brighter than the standard image. Just remember that HDR and DV have nothing to do with brightness in general. The color gamut is increased, and the overall range of brightness is larger. But it's all dependent on the way the video is processed, illuminated, and recorded/filmed. If the director and/or cinematographer doesn't want a bright image, you don't get one. Sometimes when people complain about the image brightness, it's shown the way they intended it.
I know the differences your explaining. I’m watching Fantastic beasts secrets of dumbledore in Dolby vision on the Roku the implementation in HBO Now isn’t right it’s overly dark where it shouldn’t be with Roku set the regular HDR it’s dark where it need to be with properly lit scenes. Obviously turning off HDR you get a 4K only image. My tv has proper calibration for each mode so of course they will look different but the Dolby Vision on the Roku Ultra is definitely not right at all. I can load a movie on 4K disc and Dolby Vision and lighting is great same with HDR but the Roku Dolby Vision implementation is still messed up compared to regular HDR10.
