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Cake day: June 12th, 2023

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  • HDMI isn’t necessary for HDCP though. HDCP also works over DisplayPort and even DVI.

    Edit: The HDMI article on Wikipedia that you linked even says:

    The HDMI founders began development on HDMI 1.0 on April 16, 2002, with the goal of creating an AV connector that was backward-compatible with DVI. At the time, DVI-HDCP (DVI with HDCP) and DVI-HDTV (DVI-HDCP using the CEA-861-B video standard) were being used on HDTVs. HDMI 1.0 was designed to improve on DVI-HDTV by using a smaller connector and adding audio capability and enhanced Y′CBCR capability and consumer electronics control functions.