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Display Data Channel (DDC) is a collection of protocols for digital communication between a computer display and a graphics adapter that enable the display to communicate its supported display modes to the adapter and that enable the computer host to adjust monitor parameters, such as brightness and contrast.
Consumer Electronics Control (CEC) is a feature of HDMI designed to control HDMI connected devices [1] [2] by using only one remote controller; so, individual CEC enabled devices can command and control each other without user intervention, for up to 15 devices.
Extended Display Identification Data (EDID) and Enhanced EDID (E-EDID) are metadata formats for display devices to describe their capabilities to a video source (e.g., graphics card or set-top box). The data format is defined by a standard published by the Video Electronics Standards Association (VESA).
HDMI 2.0, referred to by some manufacturers as HDMI UHD, was released on September 4, 2013. [112] HDMI 2.0 increases the maximum bandwidth to 18.0 Gbit/s. [112] [113] [114] HDMI 2.0 uses TMDS encoding for video transmission like previous versions, giving it a maximum video bandwidth of 14.4 Gbit/s. This enables HDMI 2.0 to carry 4K video at 60 ...
Front and rear views of the TVM MD-3 cathode-ray tube monitor (Enhanced Graphics Adapter era). Note the DE-9 connector, cryptic mode switch, contrast and brightness controls at front, and the V-Size and V-Hold knobs at rear, which allow the control of the scaling and signal to CRT refresh rate synchronization respectively.
HDCP 2.x features a new authentication protocol, and a locality check to ensure the receiver is relatively close (it must respond to the locality check within 7 ms on a normal DVI/HDMI link). [23] Version 2.1 of the specification was cryptanalyzed and found to have several flaws, including the ability to recover the session key.
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