HDMI Licensing have agreed to allow a single cord converter that converts HDMI 1.4b to USB Type-C, no additional dongle required.  The HDMI Alt Mode will support all the features of the new HDMI standard, including 4k resolution and an audio return channel.  That will mean any computer, tablet or other device with Type-C out can be plugged into an HDMI port on an external display with a single cord, no additional dongles or other hassles.  The Register does point out one small defect, the HDMI port is not reversible so you will still have to turn it three times before it will plug in.

"HDMI Licensing, the administrator of the High-Definition Multimedia Interface (HDMI) spec, has decided that the time has come to do away with dongles and given the thumb's up to USB-C."

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