Why 2 Short HDMI Cables Yield Different Results
By Jeff Boccaccio
Why did two relatively inexpensive 1-meter cables yield different results when tested by DPL Labs?

When it comes to HDMI performance, let me restate that reliability has been the major issue, and it usually surfaces with people breaking the rules.

This is not new, we’ve been following specification rules since the invention of the wheel, so why has it now taken such a toll?

In our experience, some manufacturers have shown a lack of competency in making HDMI products right the first time and continuing that over the products’ life span. It is absolutely false that all cables are the same, even at short lengths.



Here’s an example: Two relatively inexpensive 1-meter cables came in for testing. They were being used with cable TV, so not such a big deal. When tested with one TV, however, only one of the cables worked, but with another TV they both worked. They were from two different manufacturers, and we were supplied two of each cable.

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