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Are HDMI 2.0 cable necessary for 4k 60hz 4:4:4?

EpicBob 1,944 101 March 16, 2016 at 07:03 PM
I have been using an Amazon high speed cable (1.4, I believe), and the signal cuts out sometimes. I have it connected from my gtx 980ti to my x810c TV. It says it's 3840x2160 at 60hz and 4:4:4 is on, but sometimes the screen goes black. None of my other devices connected to my TV at lower resolutions go out, so I'm assuming it's the cable or my first HDMI 2.0 port is faulty. Cnet claims the type of cable doesn't matter, but the author admits that he was guessing. Does anyone know of a reliable cable for 4k at 60hz? I'm considering amazon brand hdmi 2.0.

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#2
Technically HDMI 2.0 cables don't exist. Cables promoting version numbers are less likely to actually be HDMI certified and function well.

The only officially recognized cable variants of significance are standard and high speed. Technically I believe a high speed cables is needed for 4k, but if it's short enough a standard cable might work.

It sounds like it could just be the energy saving / screen saver settings on your pc.

http://www.hdmi.org/consumer/buying_guide.aspx
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#3
Quote from jkee View Post :
Technically HDMI 2.0 cables don't exist. Cables promoting version numbers are less likely to actually be HDMI certified and function well.

The only officially recognized cable variants of significance are standard and high speed. Technically I believe a high speed cables is needed for 4k, but if it's short enough a standard cable might work.

It sounds like it could just be the energy saving / screen saver settings on your pc.

http://www.hdmi.org/consumer/buying_guide.aspx
I have all energy saving modes off, so that's probably not it. Just sometimes when I'm playing a PC game or something, the screen goes black for a couple seconds. Same thing happens when browsing the web. I did hear that it's a marketing gimmick, but I'm thinking about trying the supposed "new standard" since mine has an issue. Just in case, do you know what energy settings would effect it? I have the display and PC on never turn off and in "balanced" mode.
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