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HDMI (High-Definition Multimedia Interface) is a digital audio/video interface.
17
votes
How does a HDMI source detect whether the sink is native HDMI or connected by a HDMI-DVI ada...
More on Justme's answer:
HDMI 1.3a specs:
8.3.3 DVI/HDMI Device Discrimination
In order to determine if a sink is an HDMI device, an HDMI Source shall check the E-EDID for the
presence of an HDMI Vendor … Any device with an HDMI VSDB of any valid length,
containing the IEEE Registration Identifier of 0x000C03, shall be
treated as an HDMI device. …