Graphics Administration Guide (July 2008)

Specify the size of the graphics shared memory region. The size must be specified in
bytes and must be in hexadecimal.
Default value: 0x580000
ImmediateLoadDles
The X Server delays loading of some X extensions until the first protocol request to the
given extension is received. Specifying this server option forces all extensions to be
loaded at X Server startup.
screen entries
The minimum screen entry is a line with the keyword “Screen” followed by a screen
device file.
Optional specifications for default visual, monitor size, and device-dependent screen
options may follow this minimal screen description line.
Default Visual
This optional part of the format specifies the default visual that the screen uses. Valid
keywords following the “DefaultVisual” keyword are “Class”, “Depth”, “Layer”, and
“Transparent”.
If no default visual is specified, then the standard default visual class, depth, layer, and
transparency for the graphics device is used.
If there is an error in a specification, look in an information file for more details (for
example, /usr/lib/X11/Xserver/info/screens/hp), in case it is newer than the document
you’re now reading.
Class <PseudoColor> | <DirectColor>| <TrueColor>
Specify the class of the default visual.
Depth <depth_value>
Specify the depth of the default visual (for example 8 or 24).
Layer <Image> | <Overlay>
Specify the layer of the default visual.
Transparent
Specify that a visual with an application-accessible transparent entry in the default
colormap be used.
MonitorSize <diagonal_length> Inches | MM
Specify the diagonal size of the monitor. After the “MonitorSize” keyword, you must
specify the diagonal length of the monitor and then the units. Use this entry only if
you are using a non-standard monitor.
ScreenOptions
Screen options are device-dependent options that are documented in a file in the X
Server information directory (for example, /usr/lib/X11/Xserver/info/screens/hp).
X Server configuration 41