HDMI Cable

[waheed]

Do all HDMI Cables support 1080P. I was under the impression it all HDMI cables were capable of 1080P.

Just bought a HDMI cable from Lidl and it says 1080i max resolution supported.

Is this information correct.

[pfh]

Ahhh, oh no! Don't confuse me anymore than I am . I'm also assuming what you are and thought it was source/player/input dependant. Not sure why a company would state 1080i unless they're really cheap cables.

[waheed]

Ahhh, oh no! Don't confuse me anymore than I am . I'm also assuming what you are and thought it was source/player/input dependant. Not sure why a company would state 1080i unless they're really cheap cables.

Yeah, thats what I thought.

In fact there are really cheap cables, only cost me a fiver. No point buying expensive cables as they perform exactly the same task as cheaper cables. Digital is digital, there is no degrade in quality, its just a bunch of 0's and 1s travelling along the cable. Either you get a picture or you dont.

I bought the cable and brought it home, then realised the 1080i max support on back of the package.

Im sure its just a mistake (or the company manufacturing them have no idea of how HDMI works).

PS. its a silvercrest 2m HDMI to HDMI Cable.

[waheed]

Just been checking the internet forums and cant find any reference to all HDMI cables being 1080P. Then again, cant find any reference for any HDMI cables having limitations being only able to support 1080i max.

Why would a manufacturer put 1080i on a HDMI cable. I haven't open the cable as of yet, just in case it can truly only support 1080i. I can still return the item within 28 days.

Any input would be appreciated.

[bendixG15]

Go down to .... HDMI.org and read all about it.

Here's a piece...........

Q) Will all HDMI cables work support 1080p and deep color? How do I know if my cable can support these higher speeds?

A) The vast majority of image quality or interoperability issues with HDMI devices are related to the software used for device communication and content protection, and have nothing to do with the HDMI cable. In particular, these issues are often caused by the software related to HDCP handshaking, or from devices improperly handling the device capability information read through HDMI (e.g. the device has an incorrect EDID, or an inability to properly read an EDID). It is fairly uncommon for the cable to be the cause of HDMI compatibility problems, or for non-compliant cables to be found in the market. In fact, the robustness of the HDMI specification has been verified by the fact that we have not found a compliant HDMI cable that is the root cause of HDMI playback issues with compliant devices.All HDMI cables are required to support, at minimum, a standard HDTV video signal (i.e. 720p or 1080i) by virtue of being tested to verify that they meet the HDMI spec requirements. This is referred to as a Category 1 test. More recently, the HDMI Authorized Testing Centers (ATCs) have added equipment to be able to test the cable’s ability to support 1080p (which is 2x the 720p/1080i video rates) and higher rates up to the maximum HDMI speeds. These higher speeds are called Category 2. Since 1080p and deep color are becoming more common market requirements, we are seeing cable manufacturers wanting to have their cables verified with this Category 2 high speed test instead of the Category 1 test so that they can market their cables as being 1080p verified. Simplay Labs is another HDMI testing service that has been performing this high speed cable test for over a year, and some cable makers are putting the Simplay HD logo on their HDMI cables as a way to convey this level of quality.

Note, however, that cables that were Category 1 tested may still fully support and be capable of passing the Category 2 test. As a general rule of thumb, we have seen that shorter HDMI cables (i.e. 3m or shorter), even those without a specific 1080p marking, will likely pass the Category 2 test. As the length goes much higher (such as 5m or longer), the high speed 1080p signal becomes more demanding on the cable’s quality.

[waheed]

Thanks for the link. Just found myself a while ago

[edDV]

Wiki is good too.

For single link HDMI "1920x1080" is supported but they chop-crop outer pixels because all HDTV monitors overscan.
HDTV (1920 × 1080) @ 60 Hz with 5% LCD blanking (131 MHz)

If you want all the pixels (which are usually black out there for video), you want dual link and
HDTV (1920 × 1080) @ 85 Hz with GTF blanking (2×126 MHz) or
QXGA (2048 × 1536) @ 75 Hz with GTF blanking (2×170 MHz)
assuming you have anything that work$ that way.

http://en.wikipedia.org/wiki/Hdmi
http://en.wikipedia.org/wiki/Dvi

BTW: You won't find any consumer HD equipment with dual link (wide connector) HDMI. Some high end display cards might. Some provideo equipment may but they usually use SMPTE-292M SDI serial digital over coax.

Dual Link HDMI might go 6-10ft at QXGA but SMPTE-292M will go hundreds of feet at 1920x1080p/59.94.