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Question

Win 10 won't allow me to set 4k resolution for LG 55UH661V

Just bought a new LG 55UH661V 4k TV. I'm trying to set it up to show 4k from my PC through HDMI port, but display settings advanced options offers no option above 1920x1080 (recommended).
I'm on windows 10 64 bit
Sapphire R9 270x 4gb
2.1 HDMI Cable
Crimson 16.6 (latest)
all elements should be capable of 3840x2160, but I have no option above 1920x1080.
I've also got a BenQ GW2760 connected through DVI, working fine at 1920x1080.

Radeon setting say VSR is not supported for the TV.

Any idea's what I'm doing wrong?

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All Answers

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Answer
Maybe nothing.

In reply to: Win 10 won't allow me to set 4k resolution for LG 55UH661V

LG is in the news over this. The XBox One 4K discussions are incendiary. I won't go there but ask LG directly for a fix or consider returning it. It looks like this is a work in progress.

Post was last edited on December 14, 2016 12:33 PM PST

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not the same thing

In reply to: Maybe nothing.

Thanks for the reply
I looked up the story and that is about lag. The Xbox is not 4k capable.

I'm not really look to use the tv for games, mainly to run 4k vids through my PC

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The new XBox and PS4

In reply to: not the same thing

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Specifically this issue.

In reply to: not the same thing

"refusing to correctly identify the capabilities of the TVs they’re connected to."

That sounds just like your issue. Sorry I didn't add that above.

Also "The Xbox One adds support for HDMI 2.0a, so it now supports proper 4K 60Hz"

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I still have the issue with the latest update

In reply to: Specifically this issue.

I've got hold of the latest firmware update for the 55UH661V LG TV : 04.30.70.
I still have the issue.

Mine isn't a PS PRO issue, mine's window 10 PC & the articles don't mention PC.

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The issue extends to PCs.

In reply to: I still have the issue with the latest update

I understand that many won't get that. You have a fine warranty and support issue. I don't feel it's yours to solve but LGs. LG and other makers are having UHD teething problems. That is, this wasn't delivered without bugs.

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Answer
the solution

In reply to: Win 10 won't allow me to set 4k resolution for LG 55UH661V

I've stumbled across the solution :

I had to roll back a GFX driver update, so did a manual update & chose a clean install, after this the problem was fixed.

so clean install is the solution

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