It seems that there are some serious issues surrounding the use and manufacturing of Mini DisplayPort to HDMI cables, HDMI Org confirm that it has told all of the manufacturers of these cable that they are unlicensed and cannot be sold. This is a cable that connects the DisplayPort, which is more often than not found in Apple devices, although some other manufacturers such as Toshiba also use this type of connection port.
According to a spokesperson from HDMI Org on this subject;
“The HDMI specification defines an HDMI cable as having only HDMI connectors on the ends. Anything else is not a licensed use of the specification and therefore, not allowed. All HDMI products undergo compliance testing as defined by the Compliance Testing Specification. The CTS clearly defines necessary tests for all products defined in the HDMI Specification. Since this new cable product is undefined in the Specification, there are no tests associated with this product. It cannot be tested against the Specification.”
Of course, this issue could simply be corrected should a licensing agreement be made, it is not out of the question especially as there must be a money tied up in these cables.
Source [Geeky Gadgets]