The command Command Interface (CI) is the channel that the two involved parties (the computer and the monitor) are using to send and receive commands to each other.
A lot of monitor models will have less than intuitive user interfaces, so it’s understandable why some users are looking for ways to avoid using the clunky buttons that many monitors models have. On a very basic level, DDC/CI provides the Plug & Play functionality to the monitor. But even more important, a display data channel allows the user to oversee and change monitor features such as the brightness, contrast and color palette directly from their computer. It holds a collection of protocols used to facilitate the transmission of display-related information between the computer display and the display adapter.ĭDC essentially allows the monitor to inform the computer about it’s supported display modes. Display Data Channel / Command Interface (DDC/CI) What is DDC/CI?ĭisplay Data Channel (DDC) / Command Interface (CI) is a type of communication between the computer and the monitor. This is partly because most monitors manufacturers are not inclined to develop proprietary software for it. Most monitors today will support a neat feature called DDC/CI, but not many people have heard of it, let alone know what it’s for or how to use it.
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