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I have a 4K LG TV. It came with a 10ft HDMI a cable that supports [email protected] in 4:4:4 chroma and in Deep Color (are those the same?).

Now I need an HDMI cable with the same specs but at 15ft instead. I am failing. I'm on my 8th cable now and nothing works. The descriptions of these cables are all deceptive.

Does anyone have a 15ft+ cable that they use that supports these features?
 

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I have a 4K LG TV. It came with a 10ft HDMI a cable that supports [email protected] in 4:4:4 chroma and in Deep Color (are those the same?).

Now I need an HDMI cable with the same specs but at 15ft instead. I am failing. I'm on my 8th cable now and nothing works. The descriptions of these cables are all deceptive.

Does anyone have a 15ft+ cable that they use that supports these features?
I tried a few but this 20' works for me since October. Connects a PC to my 4K TV 3840x2160, 60Hz, 444.
http://www.amazon.com/gp/product/B00DI8A4Hu
YMMV
 

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There are two types of HDMI Cables....4K needs the ones specifically claimed to be "High Speed" and/or “Category 2” and should work up to 30-meters before a Repeater is required. These Repeaters are frequently built into the connector shell and are described as "Active" or "Redmere" Cables...which are highly recommended for problematic applications such as yours, at a somewhat higher cost:
http://www.hdmi.org/learningcenter/faq.aspx#44

BTW: Do NOT Confuse "Category" Ratings with CL2 and CL3 (Class) Ratings...which are for FIRE RESISTANCE.
 
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^^^^ Yep. Certified high speed HDMI cables are all you need. Under about 25' (which is the current maximum length for certification) a passive cable should work just fine. Anything over 25' you may need either a passive cable with a thicker gauge wire or an active cable such as a Redmere. And, in case you're wondering, there is no such thing as an HDMI 2.0 cable. The number is a hardware specification, not a cable specification.
 

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The Redmeres that I have do not work at 3840x2160 60Hz. Avoid them.
 

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The Redmeres that I have do not work at 3840x2160 60Hz. Avoid them.
They could be defective. It does happen from time to time. How long is your run and is it a direct connect? In other words device to tv, no switches in between.
 

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They could be defective. It does happen from time to time. How long is your run and is it a direct connect? In other words device to tv, no switches in between.
It worked with a HDMI 1.4 video card 3840x2160 60Hz @ 420. But did not work with an HDMI 2.0 Nvidia GTX-970 3840x2160 60Hz @444 or 422. Direct from PC to TV.
A person commented on my review:
"Kara says:
Probably should have read this review first. I can confirm that this cable (15' length) won't display 60 Hz on a Samsung 8550 using a GTX-970."

http://www.amazon.com/gp/product/B00H7N4V30
 

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At 15' an active cable is probably an overkill. Have you tried a certified passive high speed hdmi cable? Is your tv HDMI 2.0 compliant? If the Nvidia card is outputting at true HDMI 2.0 specs, but your tv can't process the same, then you will fall back to HDMI 1.4 hardware specs. HDMI 2.0 is still a deceptive term (as is 4k) so the Nvidia card and the tv might not be supporting the same specs. It is odd that the OP's 10' cable that came with the tv supposedly works but other cables won't. The cable is just a dumb pipe. There isn't anything magical or special about them. The only advantage of a Redmere cable over a certified High Speed HDMI cable is you can run longer lengths and still maintain the HDMI specs and the cables themselves are much thinner because they are active (draws a little power from the sink end).
 

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My TV has true HDMI 2.0 ports and does 444 color.
I found one that works which I posted in post 2.
I am a techie with a lot of cables. HDMI 2.0 can be finicky. Some cables seem to work but you get the occasional 3 second black screen with 4K 60HZ. And the rest only work at 1080P.
 

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$15 for a 20' high speed hdmi cable is not bad. Doesn't say that the cable is certified for that length but if it works, problem solved. At least you're not paying three time that amount for a Monster or AudioQuest cable.
 

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The Redmeres that I have do not work at 3840x2160 60Hz. Avoid them.
Have you tried the Redmere cables which are rated for a 18Gbs signal? Monoprice certainly differentiates between their 9Gbs and 18Gbs Redmere cables, but I've not played with a UHD signal to know what does and doesn't work with their cables.

I do have their 18Gbs rated cables which I have used with 1080p @ 15', but not UHD yet. If I get the chance to try it out I will, but wanted to know which version of the Redmeres you were using.

Unlike passive cables, I think the Redmere cables actually have a certain bandwidth they can't exceed. They are not just high speed/standard speed like other HDMI cables.
 

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Have you tried the Redmere cables which are rated for a 18Gbs signal? Monoprice certainly differentiates between their 9Gbs and 18Gbs Redmere cables, but I've not played with a UHD signal to know what does and doesn't work with their cables.

I do have their 18Gbs rated cables which I have used with 1080p @ 15', but not UHD yet. If I get the chance to try it out I will, but wanted to know which version of the Redmeres you were using.

Unlike passive cables, I think the Redmere cables actually have a certain bandwidth they can't exceed. They are not just high speed/standard speed like other HDMI cables.
The Redmere I linked in post 7 is supposedly 18Gbps.
 

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Discussion Starter #13
I tried a few but this 20' works for me since October. Connects a PC to my 4K TV 3840x2160, 60Hz, 444.
http://www.amazon.com/gp/product/B00DI8A4Hu
YMMV
I purchased this cable and it unfortunately doesn't work with UHD Deep Color. When I turn on Deep Color, that cable produces no signal, but the 10' that came with my TV does produce a signal. I'm not even totally sure what Deep Color is; it might even be the same thing as 4:4:4 but I'm not sure.
 

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I purchased this cable and it unfortunately doesn't work with UHD Deep Color. When I turn on Deep Color, that cable produces no signal, but the 10' that came with my TV does produce a signal. I'm not even totally sure what Deep Color is; it might even be the same thing as 4:4:4 but I'm not sure.
Deep color is more about bit depth than a wider color gamut. Everything in the chain has to support Deep Color (source, cable, tv) to get any benefits from it. The only distinct advantage of Deep Color is that color banding may be reduced with higher bit depth panels. For a lot of people, the difference is barely discernible unless you have color banding with Deep Color disabled. Deep Color has been around since HDMI 1.3 but a lot of source material was not encoded with Deep Color so problems arose if Deep Color was enabled on your tv and it was expecting more information that what was being sent.
 

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The Redmere I linked in post 7 is supposedly 18Gbps.
Yep, they don't work for me either.

When I re-did my set up, I purchased a bunch of these in 6' and 12' lengths specifically because of their speed rating. I thought I would be done with HDMI for a while.

I get nothing but a blinking screen when using these from my HTPC to my my LG EG9600, yet another old fat cable from Monoprice works great.

So excited to run new cables through my exterior wall where my TV is mounted. NOT. :mad:
 

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Yep, they don't work for me either.

When I re-did my set up, I purchased a bunch of these in 6' and 12' lengths specifically because of their speed rating. I thought I would be done with HDMI for a while.

I get nothing but a blinking screen when using these from my HTPC to my my LG EG9600, yet another old fat cable from Monoprice works great.

So excited to run new cables through my exterior wall where my TV is mounted. NOT. :mad:
Yep, I think it is just a bogus claim of 18Gbps like most cables these days. They don't even have the HMDI©. Does you fat MP cable have the HDMI©?
 

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Yep, I think it is just a bogus claim of 18Gbps like most cables these days. They don't even have the HMDI©. Does you fat MP cable have the HDMI©?

Not sure. I know it was purchased from MP many years ago. It has the ferrite cores on each end (not getting through the wall with those) and I have three of them.

I really like the Redmere cables and I used the 10Gbps versions for years before investing in the 18Gbps versions expecting nirvana.

Now I need to find another solution.

I should add that the 18Gbps versions work great with everything else, but my HTPC at 4k 60 4:4:4.
 

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I had the same problem with Redmere PRA 1700 and the Nvidia 980 TI. Redmere cables did not work reliably at 3840x2160 60Hz 4:2:0 HDMI 2.0 with any card. Regular cables worked with one card but not the other. Lower resolutions were all fine.
 

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Was the Redmere cable a direct device to tv connection? In other words, no switches involved.
 
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