HDMI 1.4 15M cable - AVS Forum
HDTV Technical > HDMI 1.4 15M cable
AXMAN17's Avatar AXMAN17 07:23 AM 07-07-2012
Hi,

I have just purchased a 15m hdmi 1.4 cable, connected it upto my ps3 and all I get is "mode not supported" I only get this for 1080p when I change setting to 1080i it's fine.
I have also connected my old cable back to my ps3 and I can set it to 1080p not problems.

My tv is PS63A756 Samsung.

Really weird can someone please help ..

Thanks in advance

smile.gif

Ratman's Avatar Ratman 09:40 AM 07-07-2012
Use the old cable if works without problems and return the new cable. wink.gif
Colm's Avatar Colm 10:41 AM 07-07-2012
Quote:
Originally Posted by AXMAN17 View Post

..."mode not supported"...
...usually means the source and the sink negotiated an appropriate resolution, but the signal is degraded enough when it gets to the sink that the sink cannot recognize it as the negotiated resolution. This is supported by the fact that you get a picture at 1080i. The higher the resolution and color depth, the shorter distance you will have a usable signal. Make sure you have DeepColor turned off.
AXMAN17's Avatar AXMAN17 01:13 PM 07-07-2012
Ok thanks for that

So is there some form of booster / amplifier on the market that will help ?

Thanks
Colm's Avatar Colm 01:50 PM 07-07-2012
There are equalizers you can add to the sink side of the cable. If you get one, make sure it has its own power supply. The ones that draw their power from the 5V line of the HDMI cable don't work very well. For that matter, the ones with power supplies don't work very well, either. There is more to the problem than amplification/equalization can fix. And a lot of TVs employ equalization for high speed signals already.

FWIW you should be able to do 15m at 1080p60 with 24 bit color. Did you make sure DeepColor is turned off on the PS3? 36 bit DeepColor requires 50% more bandwidth than 24 bit.

If a good passive HDMI cable doesn't do the job for you, you are looking at using an active cable (Redmere based for instance) or some kind of extender product (like HDBaseT over Cat 6 cable).
Ratman's Avatar Ratman 02:48 PM 07-07-2012
Point 1: The old cable works
Point 2: The new cable doesn't

So now for the question: What are/were you expecting by getting new cable? And... you shouldn't need boosters/equalizers for a 3' HDMI cable. Especially since the old one works fine. wink.gif

Return the new cable for a refund.
djams's Avatar djams 03:07 PM 07-07-2012
^ The OP states that a 15 meter cable was purchased. Maybe the old cable was shorter.
Ratman's Avatar Ratman 03:29 PM 07-07-2012
Quote:
Originally Posted by djams View Post

^ The OP states that a 15 meter cable was purchased. Maybe the old cable was shorter.
Perhaps....
I will admit my old eyes saw 1.5m. My bad.

Either way, Assuming the cables (old and new) are of equal length, my question is still probably a good one. tongue.gif
The OP needs to fill in the blanks. wink.gif
BCF68's Avatar BCF68 04:39 PM 07-07-2012
Quote:
Originally Posted by djams View Post

^ The OP states that a 15 meter cable was purchased. Maybe the old cable was shorter.

Why on earth would he need a 49 foot HDMI cable?
Ratman's Avatar Ratman 05:16 PM 07-07-2012
Because they sell them that long. biggrin.gif
Otto Pylot's Avatar Otto Pylot 06:12 PM 07-07-2012
I thought there was no such thing as an HDMI "1.4" cable. Maybe an HDMI "1.4a" would work better rolleyes.gif
Skylinestar's Avatar Skylinestar 10:15 PM 07-07-2012
Quote:
Originally Posted by BCF68 View Post

Why on earth would he need a 49 foot HDMI cable?
Perhaps the PS3 is in the entertainment rack far from the TV rolleyes.gif
djams's Avatar djams 10:22 PM 07-07-2012
Quote:
Originally Posted by Otto Pylot View Post

I thought there was no such thing as an HDMI "1.4" cable. Maybe an HDMI "1.4a" would work better rolleyes.gif
smile.gif
You are of course correct that there is no such thing as a version specific cable. I used to take the time to point this out, but it just got tiresome. Most folks don't really care, it seems; and a few get all testy about it. Just not worth it. :banghead:
BCF68's Avatar BCF68 11:24 PM 07-07-2012
Quote:
Originally Posted by Skylinestar View Post

Perhaps the PS3 is in the entertainment rack far from the TV rolleyes.gif

49 feet? Is his TV 240 inches?
AXMAN17's Avatar AXMAN17 01:38 AM 07-08-2012
Hi

Thanks for all the replays

I need a 15m cable as I am looking to setup a projector in one of my rooms so need to feed the cable around the room, I am just testing the cables before laying them, which is when I hit this issue.

Hope that clears up confusion over length of cable
BCF68's Avatar BCF68 02:14 AM 07-08-2012
whether or not you're having issues with the cable and the PS3 doesn't mean everything will be ok or be messed up with the projector. So the fact you're having issue with the PS3 doesn't tell you much. You'll just have to connect it to the projector. Maybe an amp will work maybe it will present it's own sets of issues.
AXMAN17's Avatar AXMAN17 02:57 AM 07-08-2012
Hi Colm

Your advice on switching deep colour off has done the trick and is now transmitting in 1080p.

Perfect and thank you

So does this impair the picture quality at all ?

Thanks again

smile.gifsmile.gif
AXMAN17's Avatar AXMAN17 02:59 AM 07-08-2012
Yes understood

But I am glad I checked the cables, i actually have two cables that i want to run and one certainly is faulty.

Thanks anyway and your right I need to test with projector as well.
Colm's Avatar Colm 04:08 AM 07-08-2012
Quote:
Originally Posted by AXMAN17 View Post

So does this impair the picture quality at all ?
smile.gifsmile.gif
You be the judge. Try both modes using a shorter cade. FWIW if you are playing BD, it is encoded at 24 bits per pixel. That is good enough for over 16M colors and the human eye can discrimate something like 10m.
AXMAN17's Avatar AXMAN17 04:24 AM 07-08-2012
Nice one

Your time and expertise is appreciated.

I am just starting my project so I am sure I will hit a few snags one the way.

Thanks again and I may be in touch in the coming months .

smile.gif
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