16 – 235 problem

Updated on 22-11-2019 in Adapters and Cables
0 on 22-11-2019

Hi Guys:

I am using old cards 7870xt, and 7970 to an HDMI 2.0 TV.

I purchased both the club3d displayport 1.2 and 1.4 adapter to hdmi 2.0.

They both work as far as getting an image, but it’s outputting 16-235, i have no option to change it to 0-255, and there’s no pixel format option in my radeon adrenaline driver.  I’ve tried older drivers such as the older Catalyst driver,  Same issue,  Not outputting 0-255.

At first I couldn’t even get it to run 3840×2160 @ 60hz, but There was a CRU thread which fixed that by adding a CEA value,  So I was wondering if some other setting in CRU is possible to rectify this.

The TV does not have any settings for that, only HDMI 1.4 and HDMI 2.0.

I know for a fact the TV will accept 0-255, because it works via HDMI direct, but then I can’t get 60hz because it’s HDMI 1.4 on the GPU.

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