[NeilMondayAMD]

Everyone,

I can confirm that the new firmware does allow 4K at 60hz on my Vizio M43-C1 on AMD R9 Nano! Good work from the people at Club-3D!

Neil

[NeilMondayAMD]

This is just a hunch. Sure the adapter supports every subsampling, but perhaps the TV/card do not. Maybe the card is defaulting to 4:4:4 or 4:2:2 and has no ability to output 4:2:0. At the same time, the TV might only be able to use 4:2:0, and will show “No Signal” when it sees 4:4:4 or 4:2:2 coming from the graphics card.

[NeilMondayAMD]

I have an AMD R9 Nano graphics card with latest 15.12 drivers, a Vizio M43-C1 TV (I am using HDMI input 5 which is the only HDMI 2.0 port). I am running windows 10 x64 and , and still cannot get 4k@60.

I have another 4k monitor(http://www.amazon.com/Upstar-M280A1-UHD-LED-Lit-Monitor/dp/B00SX4WQ2A) with hdmi 2.0 input that that does show 4k@60 with this adapter. I assume though that the monitor supports multiple chroma subsampling levels where as the vizio only supports 4:2:0.

[NeilMondayAMD]

I am currently investigating how to force my PC to output 4:2:0 chroma subsampling. From what I can tell, Vizio only supports 4:2:0, while most other PCs/cards/etc. default to 4:2:2 or 4:4:4? This is just a guess right now.

[NeilMondayAMD]

UPDATE: I have tried with a different monitor that also supports 4K@60hz with hdmi 2.0, and it worked fine.It appears to be a problem with my TV then I am guessing.

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