absent. When only one graphics screen is present, SAM will treat this screen as though it is always configured. Preselecting both configured and unconfigured screens will result in only the first two screen menu options being active.

X*screens File

For manual changes, please refer to the sample files in the /etc/X11/ directory. Three files of particular interest are the X0screens, X0devices, and X0pointerkeys files.

Description of the X*screens Configuration File

This file belongs in /etc/X11/X*screens, where "*" is the display number of the server. For example, the "X0screens" file is used when the $DISPLAY environment variable is set to <hostname>:0.<screen> and the server is invoked using the ":0" option.

The X*screens file is used to specify:

Device-independent server options, and

For each screen:

oWhat device file to use (required), o The default visual,

o Monitor size, and

o Device-dependent screen options.

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NOTE: All of the items above, except for device-independent server options, are specified on a per- screen basis.

The X server supports up to four screens at a time. Specifying more than four screens will cause a server error message.

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Syntax Guidelines

Blank lines and comments (text following "#") are ignored.

Entries can occupy more than a single line.

All symbols in the file are recognized case-insensitive.

The X*screens File Format

Items must appear in the X*screens file in the order that they are specified below.

Brackets ("[" and "]") denote optional items. Italicized items in angle brackets ("<" and ">") denote values to be specified. The double vertical line ("") denotes that one of the ored values (items surrounded by braces, "{" and "}") must be included.

The block from the "Screen <device_name>" line to the final "<screen_option>" line is referred to as a either a "Screen Entry" or as a "Single Logical Screen entry". As shown above, the X*screens format is

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Graphics Administration Guide for HP-UX 10.20