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Hello,

I wanted to give some input. First my specs:

• Windows 10 on latest update (Version 1607 to date)
• Crimson ReLive Edition 16.12.2 
• AMD R9 Fury X
• Club3D CAC-1070 Adapter
• AmazonBasics HDMI 2.0 cable @3 meters
• TV Grundig 55 FLX 9491 (Has full HDMI 2.0 support)
• Denon AVR-X1300W (Also has full HDMI 2.0 support)

Note: AVR is always between PC and TV.

So, first when I got the adapter, I was on Crimson ReLive Edition 16.12.1 and when I plugged it into my tv, the 3840×2160 resolution didn’t show up at all. I played around with several settings but nothing helped. Then after retesting another day it suddenly worked, at least the resolution got detected correctly, but increasing it higher than 1920×1080 would cause the TV to lose the input signal. So I wiped the driver with DDU and installed the latest version Crimson ReLive Edition 16.12.2.

After plugging my PC into my TV again I got the full resolution options and when I selected them, the screen switched correctly. But In windows settings, 30hz is the highest choosable option. So I added a custom resolution with 60hz through Radeon Settings using the guide that came with the adapter (Using CVT-RB etc.). But now when I choose that 60hz version, the TV looses signal again and I have to wait until it reverts to 30hz. I switched the color depth from 10bit to 8bit, which didn’t help. Black Screen is all I can get with 60hz.

tl;dr: 3840×2160@30hz works with latest AMD drivers on Win10, but I can’t get to 60hz.

Any Ideas what else I could try?

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Err double post, side was unresponsive, sorry 😐