This permits you to view the exact names that have been loaded into the server without
knowing the rgb.txt file location.
The colors from the rgb.txt file have been used in many places. They
3.14 Configuring a Monitor??™s Scan Rates
VESA has defined a probing technology for video monitors called the Display Data
Channel (DDC). The early versions of this standard enabled the monitor to send data
to the video card to describe the monitor??™s capabilities; later versions of the standard
also permit you to control the monitor settings using the computer.
DDC makes monitor configuration automatic. But there are three common situations
where it can??™t be used. These are described next.
3.14
60 Chapter 3: Basic X.org Configuration
??? When the monitor is not on or connected when the X server starts up
??? When using a monitor that doesn??™t support DDC (obviously!), which includes
some laptop panels and old monitors
??? When you??™re using a device in between the monitor and the video card (such as
some KVM switches), video splitters (to drive multiple monitors from one video
output), or signal boosters (to connect a monitor at a distance)
For example, when I??™m teaching, my computer drives both a monitor and a classroom
video projector.
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