Yea, please understand that HDMI is NOT a standard. What that means, is each manufacturer can kinda call their HDMI, HDMI, but there is no single one thing that makes HDMI. SO, if the manufacturers would get together and make a standard, then we would have no problem.
HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transferring uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device
Notice the word PROPRIETARY? That means NOT a standard!