[twotonejuggler]

R9 290x, NVIDIA Quadra 4000, Vizio p502ui-b1, Vizio M50-C1

[twotonejuggler]

Couldn’t get it to work, and I tried everything. I returned mine to Amazon today. I tried it with 2 computers (1 NVIDIA and 1 AMD) , 4 HDMI cables, 4 different AMD driver versions, two different 4K TVs, and a whole bunch of goofy tricks people on forums suggested…NOTHING WORKED!

[twotonejuggler]

Well, I tried setting the resolution to 1080p24, rebooting, and then setting it to 4K@60p but that had no effect. I am still stuck with 4K@30p. Is there any way to tell if I have a bad adapter? I was tempted to do an exchange on Amazon, but I know it might be a long time before they get more stock and I get a replacment.

[twotonejuggler]

I tried setting to 1080p30, then reboot and then up again. I’m not sure if 1080p24 is an available option. I will check when I get home.

[twotonejuggler]

Just a thought, I was looking at the P series owners thread on AVS forums and it would appear that some people with Nvidia cards that have native HDMI 2.0 have also lost the ability to do 4k @ 60hz after the latest firmware update 1.3.15-UHD. This could be related to the firmware, is anyone here using something besides 1.3.15-UHD?

[twotonejuggler]

Thanks MST1407. I already set color depth to 8, that got rid of the “no signal, ” (at 30hz) but the issue is when we set it to 60hz we get “no signal” again. I have tried 4 different versions of the AMD drivers, including the latest ones. Using the right HDMI port…kind of obvious but just to be on the safe side I have tried every HDMI port on the TV. I looked up UHD color, and it appears to be something that only applies to Samsung TVs. There has to be something else that can be done, this is driving me crazy.

[twotonejuggler]

Any idea why?

[twotonejuggler]

LoneNF, you and I are having the same issue. I also have a Vizio P series 50 inch and an R9 290x. I was able to get a signal by setting color depth to 8 bit (that is the most our TV will support), but when I change the refresh rate to 60hz I get “no signal” again. What version of Windows are you running? If you have any luck please let us know.

[twotonejuggler]

Update: I switched color depth to 8 bit and I can now get 4k @ 30hz, but when I switch to 60hz there is no signal. I tried two different high speeds HDMI cables and updated Crimson drivers, but still can’t get 60hz.

[twotonejuggler]

Neil, could you provide a little more info about your setup? What is the model of your graphics card? What is the model of the TV? and what version of Windows are you using? Something makes me think this is related to Windows 7 and I am tempted to upgrade to Windows 10 to see if that resolves the issue.

[twotonejuggler]

Update: the adapter works under Fedora Linux with open source drivers, but only @ 30hz. But I am still getting no signal when using with Windows 7. This make me wonder if there is a driver issue or a software solution that might make this work.

[twotonejuggler]

I am having the same problem. I have a Vizio p502ui-b1 and as soon as I connect my TV there is no signal. There has to be a way to make this work.

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