HDR on windows 10

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Joined
5 May 2018
Posts
12
Hi, I recently built a gaming pc and I have a HDR tv but it looks washed out. I have a 1080ti graphics card and HDR on windows 10 is set to on. On nvidia settings my desktop colour depth is 32, output colour depth is 12 bit and output dynamic range is limited. It won't allow me to put it to full which is strange as my ps4 allows me to. Watching hdr movies has very washed out blacks, almost like grey and hdr games also look washed out. Is there any settings I should change? I 'm using a sony xe90 tv so it should be goof for hdr. A link to my tv is below, thanks.

https://www.sony.co.uk/electronics/televisions/xe9005-series
 
I downloaded the April update for windows 10 and they added a new option in display settings called HDR and WCG settings with a slider. I moved the slider up and the contrast appears better with whiter whites and darker blacks. Also after the update my nvidia output colour depth is stuck at rgb 8 bits and doesn't have an option for 10 or 12 bit which is strange because my tv supports 12 bit which should be better. Also the dynamic range is now at full. I don't know why the options for 10 and 12 bit have disappeared though.
 
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