620 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
			
		
		
	
	
			620 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
| .\" $Xorg: Xserver.man,v 1.4 2001/02/09 02:04:07 xorgcvs Exp $
 | |
| .\" $XdotOrg: xserver/xorg/doc/Xserver.man.pre,v 1.4 2005/12/23 20:11:12 alanc Exp $
 | |
| .\" Copyright 1984 - 1991, 1993, 1994, 1998  The Open Group
 | |
| .\"
 | |
| .\" Permission to use, copy, modify, distribute, and sell this software and its
 | |
| .\" documentation for any purpose is hereby granted without fee, provided that
 | |
| .\" the above copyright notice appear in all copies and that both that
 | |
| .\" copyright notice and this permission notice appear in supporting
 | |
| .\" documentation.
 | |
| .\"
 | |
| .\" The above copyright notice and this permission notice shall be included
 | |
| .\" in all copies or substantial portions of the Software.
 | |
| .\"
 | |
| .\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 | |
| .\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 | |
| .\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 | |
| .\" IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
 | |
| .\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 | |
| .\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 | |
| .\" OTHER DEALINGS IN THE SOFTWARE.
 | |
| .\"
 | |
| .\" Except as contained in this notice, the name of The Open Group shall
 | |
| .\" not be used in advertising or otherwise to promote the sale, use or
 | |
| .\" other dealings in this Software without prior written authorization
 | |
| .\" from The Open Group.
 | |
| .\" $XFree86: xc/programs/Xserver/Xserver.man,v 3.31 2004/01/10 22:27:46 dawes Exp $
 | |
| .\" shorthand for double quote that works everywhere.
 | |
| .ds q \N'34'
 | |
| .TH XSERVER 1 __xorgversion__
 | |
| .SH NAME
 | |
| Xserver \- X Window System display server
 | |
| .SH SYNOPSIS
 | |
| .B X
 | |
| [option ...]
 | |
| .SH DESCRIPTION
 | |
| .I X
 | |
| is the generic name for the X Window System display server.  It is
 | |
| frequently a link or a copy of the appropriate server binary for
 | |
| driving the most frequently used server on a given machine.
 | |
| .SH "STARTING THE SERVER"
 | |
| The X server is usually started from the X Display Manager program 
 | |
| \fIxdm\fP(1) or a similar display manager program.
 | |
| This utility is run from the system boot files and takes care of keeping
 | |
| the server running, prompting for usernames and passwords, and starting up
 | |
| the user sessions.
 | |
| .PP
 | |
| Installations that run more than one window system may need to use the
 | |
| \fIxinit\fP(1) utility instead of a display manager.  However, \fIxinit\fP is
 | |
| to be considered a tool for building startup scripts and is not
 | |
| intended for use by end users.  Site administrators are \fBstrongly\fP
 | |
| urged to use a display manager, or build other interfaces for novice users.
 | |
| .PP
 | |
| The X server may also be started directly by the user, though this
 | |
| method is usually reserved for testing and is not recommended for
 | |
| normal operation.  On some platforms, the user must have special
 | |
| permission to start the X server, often because access to certain
 | |
| devices (e.g. \fI/dev/mouse\fP) is restricted.
 | |
| .PP
 | |
| When the X server starts up, it typically takes over the display.  If
 | |
| you are running on a workstation whose console is the display, you may
 | |
| not be able to log into the console while the server is running.
 | |
| .SH OPTIONS
 | |
| Many X servers have device-specific command line options.  See the manual
 | |
| pages for the individual servers for more details; a list of
 | |
| server-specific manual pages is provided in the SEE ALSO section below.
 | |
| .PP
 | |
| All of the X servers accept the command line options described below.
 | |
| Some X servers may have alternative ways of providing the parameters
 | |
| described here, but the values provided via the command line options
 | |
| should override values specified via other mechanisms.
 | |
| .TP 8
 | |
| .B :\fIdisplaynumber\fP
 | |
| The X server runs as the given \fIdisplaynumber\fP, which by default is 0.
 | |
| If multiple X servers are to run simultaneously on a host, each must have
 | |
| a unique display number.  See the DISPLAY
 | |
| NAMES section of the \fIX\fP(__miscmansuffix__) manual page to learn how to
 | |
| specify which display number clients should try to use.
 | |
| .TP 8
 | |
| .B \-a \fInumber\fP
 | |
| sets pointer acceleration (i.e. the ratio of how much is reported to how much
 | |
| the user actually moved the pointer).
 | |
| .TP 8
 | |
| .B \-ac
 | |
| disables host-based access control mechanisms.  Enables access by any host,
 | |
| and permits any host to modify the access control list.
 | |
| Use with extreme caution.
 | |
| This option exists primarily for running test suites remotely.
 | |
| .TP 8
 | |
| .B \-audit \fIlevel\fP
 | |
| sets the audit trail level.  The default level is 1, meaning only connection
 | |
| rejections are reported.  Level 2 additionally reports all successful
 | |
| connections and disconnects.  Level 4 enables messages from the
 | |
| SECURITY extension, if present, including generation and revocation of
 | |
| authorizations and violations of the security policy.
 | |
| Level 0 turns off the audit trail.
 | |
| Audit lines are sent as standard error output.
 | |
| .TP 8
 | |
| .B \-auth \fIauthorization-file\fP
 | |
| specifies a file which contains a collection of authorization records used
 | |
| to authenticate access.  See also the \fIxdm\fP(1) and 
 | |
| \fIXsecurity\fP(__miscmansuffix__) manual pages.
 | |
| .TP 8
 | |
| .B \-bs
 | |
| disables backing store support on all screens.
 | |
| .TP 8
 | |
| .B \-br
 | |
| sets the default root window to solid black instead of the standard root weave
 | |
| pattern.
 | |
| .TP 8
 | |
| .B \-c
 | |
| turns off key-click.
 | |
| .TP 8
 | |
| .B c \fIvolume\fP
 | |
| sets key-click volume (allowable range: 0-100).
 | |
| .TP 8
 | |
| .B \-cc \fIclass\fP
 | |
| sets the visual class for the root window of color screens.
 | |
| The class numbers are as specified in the X protocol.
 | |
| Not obeyed by all servers.
 | |
| .TP 8
 | |
| .B \-co \fIfilename\fP
 | |
| sets name of RGB color database.  The default is
 | |
| .IR __projectroot__/share/X11/rgb .
 | |
| .ig
 | |
| .TP 8
 | |
| .B \-config \fIfilename\fP
 | |
| reads more options from the given file.  Options in the file may be separated
 | |
| by newlines if desired.  If a '#' character appears on a line, all characters
 | |
| between it and the next newline are ignored, providing a simple commenting
 | |
| facility.  The \fB\-config\fP option itself may appear in the file.
 | |
| .BR NOTE :
 | |
| This option is disabled when the Xserver is run with an effective uid
 | |
| different from the user's real uid.
 | |
| ..
 | |
| .TP 8
 | |
| .B \-core
 | |
| causes the server to generate a core dump on fatal errors.
 | |
| .TP 8
 | |
| .B \-deferglyphs \fIwhichfonts\fP
 | |
| specifies the types of fonts for which the server should attempt to use
 | |
| deferred glyph loading.  \fIwhichfonts\fP can be all (all fonts),
 | |
| none (no fonts), or 16 (16 bit fonts only).
 | |
| .TP 8
 | |
| .B \-dpi \fIresolution\fP
 | |
| sets the resolution for all screens, in dots per inch.
 | |
| To be used when the server cannot determine the screen size(s) from the
 | |
| hardware.
 | |
| .TP 8
 | |
| .B dpms
 | |
| enables DPMS (display power management services), where supported.  The
 | |
| default state is platform and configuration specific.
 | |
| .TP 8
 | |
| .B \-dpms
 | |
| disables DPMS (display power management services).  The default state
 | |
| is platform and configuration specific.
 | |
| .TP 8
 | |
| .BI \-extension extensionName
 | |
| disables named extension.   If an unknown extension name is specified,
 | |
| a list of accepted extension names is printed.
 | |
| .TP 8
 | |
| .BI \+extension extensionName
 | |
| enables named extension.   If an unknown extension name is specified,
 | |
| a list of accepted extension names is printed.
 | |
| .TP 8
 | |
| .B \-f \fIvolume\fP
 | |
| sets feep (bell) volume (allowable range: 0-100).
 | |
| .TP 8
 | |
| .B \-fc \fIcursorFont\fP
 | |
| sets default cursor font.
 | |
| .TP 8
 | |
| .B \-fn \fIfont\fP
 | |
| sets the default font.
 | |
| .TP 8
 | |
| .B \-fp \fIfontPath\fP
 | |
| sets the search path for fonts.  This path is a comma separated list
 | |
| of directories which the X server searches for font databases.
 | |
| See the FONTS section of this manual page for more information and the default
 | |
| list.
 | |
| .TP 8
 | |
| .B \-help
 | |
| prints a usage message.
 | |
| .TP 8
 | |
| .B \-I
 | |
| causes all remaining command line arguments to be ignored.
 | |
| .TP 8
 | |
| .B \-maxbigreqsize \fIsize\fP
 | |
| sets the maximum big request to
 | |
| .I size
 | |
| MB.
 | |
| .TP 8
 | |
| .B \-nolisten \fItrans-type\fP
 | |
| disables a transport type.  For example, TCP/IP connections can be disabled
 | |
| with
 | |
| .BR "\-nolisten tcp" .
 | |
| This option may be issued multiple times to disable listening to different
 | |
| transport types.
 | |
| .TP 8
 | |
| .B \-noreset
 | |
| prevents a server reset when the last client connection is closed.  This
 | |
| overrides a previous
 | |
| .B \-terminate
 | |
| command line option.
 | |
| .TP 8
 | |
| .B \-p \fIminutes\fP
 | |
| sets screen-saver pattern cycle time in minutes.
 | |
| .TP 8
 | |
| .B \-pn
 | |
| permits the server to continue running if it fails to establish all of
 | |
| its well-known sockets (connection points for clients), but
 | |
| establishes at least one.  This option is set by default.
 | |
| .TP 8
 | |
| .B \-nopn
 | |
| causes the server to exit if it fails to establish all of its well-known
 | |
| sockets (connection points for clients).
 | |
| .TP 8
 | |
| .B \-r
 | |
| turns off auto-repeat.
 | |
| .TP 8
 | |
| .B r
 | |
| turns on auto-repeat.
 | |
| .TP 8
 | |
| .B \-s \fIminutes\fP
 | |
| sets screen-saver timeout time in minutes.
 | |
| .TP 8
 | |
| .B \-su
 | |
| disables save under support on all screens.
 | |
| .TP 8
 | |
| .B \-t \fInumber\fP
 | |
| sets pointer acceleration threshold in pixels (i.e. after how many pixels
 | |
| pointer acceleration should take effect).
 | |
| .TP 8
 | |
| .B \-terminate
 | |
| causes the server to terminate at server reset, instead of continuing to run.
 | |
| This overrides a previous
 | |
| .B \-noreset
 | |
| command line option.
 | |
| .TP 8
 | |
| .B \-to \fIseconds\fP
 | |
| sets default connection timeout in seconds.
 | |
| .TP 8
 | |
| .B \-tst
 | |
| disables all testing extensions (e.g., XTEST, XTrap, XTestExtension1, RECORD).
 | |
| .TP 8
 | |
| .B tty\fIxx\fP
 | |
| ignored, for servers started the ancient way (from init).
 | |
| .TP 8
 | |
| .B v
 | |
| sets video-off screen-saver preference.
 | |
| .TP 8
 | |
| .B \-v
 | |
| sets video-on screen-saver preference.
 | |
| .TP 8
 | |
| .B \-wm
 | |
| forces the default backing-store of all windows to be WhenMapped.  This
 | |
| is a backdoor way of getting backing-store to apply to all windows.
 | |
| Although all mapped windows will have backing store, the backing store
 | |
| attribute value reported by the server for a window will be the last
 | |
| value established by a client.  If it has never been set by a client,
 | |
| the server will report the default value, NotUseful.  This behavior is
 | |
| required by the X protocol, which allows the server to exceed the
 | |
| client's backing store expectations but does not provide a way to tell
 | |
| the client that it is doing so.
 | |
| .TP 8
 | |
| .B \-wr
 | |
| sets the default root window to solid white instead of the standard root weave
 | |
| pattern.
 | |
| .TP 8
 | |
| .B \-x \fIextension\fP
 | |
| loads the specified extension at init.
 | |
| This is a no-op for most implementations.
 | |
| .TP 8
 | |
| .B [+-]xinerama
 | |
| enables(+) or disables(-) the XINERAMA extension.  The default state is
 | |
| platform and configuration specific.
 | |
| .SH SERVER DEPENDENT OPTIONS
 | |
| Some X servers accept the following options:
 | |
| .TP 8
 | |
| .B \-ld \fIkilobytes\fP
 | |
| sets the data space limit of the server to the specified number of kilobytes.
 | |
| A value of zero makes the data size as large as possible.  The default value
 | |
| of \-1 leaves the data space limit unchanged.
 | |
| .TP 8
 | |
| .B \-lf \fIfiles\fP
 | |
| sets the number-of-open-files limit of the server to the specified number.
 | |
| A value of zero makes the limit as large as possible.  The default value
 | |
| of \-1 leaves the limit unchanged.
 | |
| .TP 8
 | |
| .B \-ls \fIkilobytes\fP
 | |
| sets the stack space limit of the server to the specified number of kilobytes.
 | |
| A value of zero makes the stack size as large as possible.  The default value
 | |
| of \-1 leaves the stack space limit unchanged.
 | |
| .TP 8
 | |
| .B \-logo
 | |
| turns on the X Window System logo display in the screen-saver.
 | |
| There is currently no way to change this from a client.
 | |
| .TP 8
 | |
| .B nologo
 | |
| turns off the X Window System logo display in the screen-saver.
 | |
| There is currently no way to change this from a client.
 | |
| .TP 8
 | |
| .B \-render 
 | |
| .BR default | mono | gray | color
 | |
| sets the color allocation policy that will be used by the render extension.
 | |
| .RS 8
 | |
| .TP 8
 | |
| .I default
 | |
| selects the default policy defined for the display depth of the X
 | |
| server. 
 | |
| .TP 8
 | |
| .I mono
 | |
| don't use any color cell. 
 | |
| .TP 8
 | |
| .I gray 
 | |
| use a gray map of 13 color cells for the X render extension.
 | |
| .TP 8
 | |
| .I color
 | |
| use a color cube of at most 4*4*4 colors (that is 64 color cells).
 | |
| .RE
 | |
| .TP 8
 | |
| .B \-dumbSched
 | |
| disables smart scheduling on platforms that support the smart scheduler.
 | |
| .TP
 | |
| .B \-schedInterval \fIinterval\fP
 | |
| sets the smart scheduler's scheduling interval to
 | |
| .I interval
 | |
| milliseconds.
 | |
| .SH XDMCP OPTIONS
 | |
| X servers that support XDMCP have the following options.
 | |
| See the \fIX Display Manager Control Protocol\fP specification for more
 | |
| information.
 | |
| .TP 8
 | |
| .B \-query \fIhostname\fP
 | |
| enables XDMCP and sends Query packets to the specified
 | |
| .IR hostname .
 | |
| .TP 8
 | |
| .B \-broadcast
 | |
| enable XDMCP and broadcasts BroadcastQuery packets to the network.  The
 | |
| first responding display manager will be chosen for the session.
 | |
| .TP 8
 | |
| .B \-multicast [\fIaddress\fP [\fIhop count\fP]]
 | |
| Enable XDMCP and multicast BroadcastQuery packets to the  network.   
 | |
| The first responding display manager is chosen for the session.  If an 
 | |
| address is specified, the multicast is sent to that address.  If no 
 | |
| address is specified, the multicast is sent to the default XDMCP IPv6 
 | |
| multicast group.  If a hop count is specified, it is used as the maximum 
 | |
| hop count for the multicast.  If no hop count is specified, the multicast 
 | |
| is set to a maximum of 1 hop, to prevent the multicast from being routed 
 | |
| beyond the local network.
 | |
| .TP 8
 | |
| .B \-indirect \fIhostname\fP
 | |
| enables XDMCP and send IndirectQuery packets to the specified
 | |
| .IR hostname .
 | |
| .TP 8
 | |
| .B \-port \fIport-number\fP
 | |
| uses the specified \fIport-number\fP for XDMCP packets, instead of the
 | |
| default.  This option must be specified before any \-query, \-broadcast,
 | |
| \-multicast, or \-indirect options.
 | |
| .TP 8
 | |
| .B \-from \fIlocal-address\fP
 | |
| specifies the local address to connect from (useful if the connecting host
 | |
| has multiple network interfaces).  The \fIlocal-address\fP may be expressed
 | |
| in any form acceptable to the host platform's \fIgethostbyname\fP(3)
 | |
| implementation.
 | |
| .TP 8
 | |
| .B \-once
 | |
| causes the server to terminate (rather than reset) when the XDMCP session
 | |
| ends.
 | |
| .TP 8
 | |
| .B \-class \fIdisplay-class\fP
 | |
| XDMCP has an additional display qualifier used in resource lookup for
 | |
| display-specific options.  This option sets that value, by default it
 | |
| is "MIT-Unspecified" (not a very useful value).
 | |
| .TP 8
 | |
| .B \-cookie \fIxdm-auth-bits\fP
 | |
| When testing XDM-AUTHENTICATION-1, a private key is shared between the
 | |
| server and the manager.  This option sets the value of that private
 | |
| data (not that it is very private, being on the command line!).
 | |
| .TP 8
 | |
| .B \-displayID \fIdisplay-id\fP
 | |
| Yet another XDMCP specific value, this one allows the display manager to
 | |
| identify each display so that it can locate the shared key.
 | |
| .SH XKEYBOARD OPTIONS
 | |
| X servers that support the XKEYBOARD (a.k.a. \*qXKB\*q) extension accept the
 | |
| following options.  All layout files specified on the command line must be 
 | |
| located in the XKB base directory or a subdirectory, and specified as the
 | |
| relative path from the XKB base directory.  The default XKB base directory is
 | |
| .IR __projectroot__/lib/X11/xkb .
 | |
| .TP 8
 | |
| .B [+-]kb
 | |
| enables(+) or disables(-) the XKEYBOARD extension.
 | |
| .TP 8
 | |
| .BR [+-]accessx " [ \fItimeout\fP [ \fItimeout_mask\fP [ \fIfeedback\fP [ \fIoptions_mask\fP ] ] ] ]"
 | |
| enables(+) or disables(-) AccessX key sequences.
 | |
| .TP 8
 | |
| .B \-xkbdir \fIdirectory\fP
 | |
| base directory for keyboard layout files.  This option is not available
 | |
| for setuid X servers (i.e., when the X server's real and effective uids
 | |
| are different).
 | |
| .TP 8
 | |
| .B \-ardelay \fImilliseconds\fP
 | |
| sets the autorepeat delay (length of time in milliseconds that a key must
 | |
| be depressed before autorepeat starts).
 | |
| .TP 8
 | |
| .B \-arinterval \fImilliseconds\fP
 | |
| sets the autorepeat interval (length of time in milliseconds that should
 | |
| elapse between autorepeat-generated keystrokes).
 | |
| .TP 8
 | |
| .B \-xkbmap \fIfilename\fP
 | |
| loads keyboard description in \fIfilename\fP on server startup.
 | |
| .SH SECURITY EXTENSION OPTIONS
 | |
| X servers that support the SECURITY extension accept the following option:
 | |
| .TP 8
 | |
| .B \-sp \fIfilename\fP
 | |
| causes the server to attempt to read and interpret filename as a security
 | |
| policy file with the format described below.  The file is read at server
 | |
| startup and reread at each server reset.
 | |
| The syntax of the security policy file is described in 
 | |
| \fISecurityPolicy\fP(__filemansuffix__).
 | |
| .SH "NETWORK CONNECTIONS"
 | |
| The X server supports client connections via a platform-dependent subset of
 | |
| the following transport types: TCP\/IP, Unix Domain sockets, DECnet,
 | |
| and several varieties of SVR4 local connections.  See the DISPLAY
 | |
| NAMES section of the \fIX\fP(__miscmansuffix__) manual page to learn how to
 | |
| specify which transport type clients should try to use.
 | |
| .SH GRANTING ACCESS
 | |
| The X server implements a platform-dependent subset of the following
 | |
| authorization protocols: MIT-MAGIC-COOKIE-1, XDM-AUTHORIZATION-1,
 | |
| XDM-AUTHORIZATION-2, SUN-DES-1, and MIT-KERBEROS-5.  See the 
 | |
| \fIXsecurity\fP(__miscmansuffix__) manual page for information on the 
 | |
| operation of these protocols.
 | |
| .PP
 | |
| Authorization data required by the above protocols is passed to the
 | |
| server in a private file named with the \fB\-auth\fP command line
 | |
| option.  Each time the server is about to accept the first connection
 | |
| after a reset (or when the server is starting), it reads this file.
 | |
| If this file contains any authorization records, the local host is not
 | |
| automatically allowed access to the server, and only clients which
 | |
| send one of the authorization records contained in the file in the
 | |
| connection setup information will be allowed access.  See the
 | |
| \fIXau\fP manual page for a description of the binary format of this
 | |
| file.  See \fIxauth\fP(1) for maintenance of this file, and distribution
 | |
| of its contents to remote hosts.
 | |
| .PP
 | |
| The X server also uses a host-based access control list for deciding
 | |
| whether or not to accept connections from clients on a particular machine.
 | |
| If no other authorization mechanism is being used,
 | |
| this list initially consists of the host on which the server is running as
 | |
| well as any machines listed in the file \fI/etc/X\fBn\fI.hosts\fR, where
 | |
| \fBn\fP is the display number of the server.  Each line of the file should
 | |
| contain either an Internet hostname (e.g. expo.lcs.mit.edu) or a DECnet
 | |
| hostname in double colon format (e.g. hydra::) or a complete name in the format
 | |
| \fIfamily\fP:\fIname\fP as described in the \fIxhost\fP(1) manual page.
 | |
| There should be no leading or trailing spaces on any lines.  For example:
 | |
| .sp
 | |
| .in +8
 | |
| .nf
 | |
| joesworkstation
 | |
| corporate.company.com
 | |
| star::
 | |
| inet:bigcpu
 | |
| local:
 | |
| .fi
 | |
| .in -8
 | |
| .PP
 | |
| Users can add or remove hosts from this list and enable or disable access
 | |
| control using the \fIxhost\fP command from the same machine as the server.
 | |
| .PP
 | |
| If the X FireWall Proxy (\fIxfwp\fP) is being used without a sitepolicy,
 | |
| host-based authorization must be turned on for clients to be able to
 | |
| connect to the X server via the \fIxfwp\fP.  If \fIxfwp\fP is run without
 | |
| a configuration file and thus no sitepolicy is defined, if \fIxfwp\fP
 | |
| is using an X server where xhost + has been run to turn off host-based
 | |
| authorization checks, when a client tries to connect to this X server
 | |
| via \fIxfwp\fP, the X server will deny the connection.  See \fIxfwp\fP(1)
 | |
| for more information about this proxy.
 | |
| .PP
 | |
| The X protocol intrinsically does not have any notion of window operation
 | |
| permissions or place any restrictions on what a client can do; if a program can
 | |
| connect to a display, it has full run of the screen.
 | |
| X servers that support the SECURITY extension fare better because clients
 | |
| can be designated untrusted via the authorization they use to connect; see
 | |
| the \fIxauth\fP(1) manual page for details.  Restrictions are imposed
 | |
| on untrusted clients that curtail the mischief they can do.  See the SECURITY
 | |
| extension specification for a complete list of these restrictions.
 | |
| .PP
 | |
| Sites that have better
 | |
| authentication and authorization systems might wish to make
 | |
| use of the hooks in the libraries and the server to provide additional
 | |
| security models.
 | |
| .SH SIGNALS
 | |
| The X server attaches special meaning to the following signals:
 | |
| .TP 8
 | |
| .I SIGHUP
 | |
| This signal causes the server to close all existing connections, free all
 | |
| resources, and restore all defaults.  It is sent by the display manager
 | |
| whenever the main user's main application (usually an \fIxterm\fP or window
 | |
| manager) exits to force the server to clean up and prepare for the next
 | |
| user.
 | |
| .TP 8
 | |
| .I SIGTERM
 | |
| This signal causes the server to exit cleanly.
 | |
| .TP 8
 | |
| .I SIGUSR1
 | |
| This signal is used quite differently from either of the above.  When the
 | |
| server starts, it checks to see if it has inherited SIGUSR1 as SIG_IGN
 | |
| instead of the usual SIG_DFL.  In this case, the server sends a SIGUSR1 to
 | |
| its parent process after it has set up the various connection schemes.
 | |
| \fIXdm\fP uses this feature to recognize when connecting to the server
 | |
| is possible.
 | |
| .SH FONTS
 | |
| The X server can obtain fonts from directories and/or from font servers.
 | |
| The list of directories and font servers
 | |
| the X server uses when trying to open a font is controlled
 | |
| by the \fIfont path\fP.  
 | |
| .LP
 | |
| The default font path is
 | |
| __default_font_path__ .
 | |
| .LP
 | |
| A special kind of directory can be specified using the the \fBcatalogue\fP:
 | |
| prefix. Directories specified this way can contain symlinks pointing to the
 | |
| real font directories. See the FONTPATH.D section for details.
 | |
| .LP
 | |
| The font path can be set with the \fB\-fp\fP option or by \fIxset\fP(1)
 | |
| after the server has started.
 | |
| .SH "FONTPATH.D"
 | |
| You can specify a special kind of font path in the form \fBcatalogue:<dir>\fR.
 | |
| The directory specified after the catalogue: prefix will be scanned for symlinks
 | |
| and each symlink destination will be added as a local fontfile FPE.
 | |
| .PP
 | |
| The symlink can be suffixed by attributes such as '\fBunscaled\fR', which
 | |
| will be passed through to the underlying fontfile FPE. The only exception is
 | |
| the newly introduced '\fBpri\fR' attribute, which will be used for ordering
 | |
| the font paths specified by the symlinks.
 | |
| 
 | |
| An example configuration:
 | |
| 
 | |
| .nf
 | |
|     75dpi:unscaled:pri=20 \-> /usr/share/X11/fonts/75dpi
 | |
|     ghostscript:pri=60 \-> /usr/share/fonts/default/ghostscript
 | |
|     misc:unscaled:pri=10 \-> /usr/share/X11/fonts/misc
 | |
|     type1:pri=40 \-> /usr/share/X11/fonts/Type1
 | |
|     type1:pri=50 \-> /usr/share/fonts/default/Type1
 | |
| .fi
 | |
| 
 | |
| This will add /usr/share/X11/fonts/misc as the first FPE with the attribute
 | |
| 'unscaled', second FPE will be /usr/share/X11/fonts/75dpi, also with
 | |
| the attribute unscaled etc. This is functionally equivalent to setting
 | |
| the following font path:
 | |
| 
 | |
| .nf
 | |
|     /usr/share/X11/fonts/misc:unscaled,
 | |
|     /usr/share/X11/fonts/75dpi:unscaled,
 | |
|     /usr/share/X11/fonts/Type1,
 | |
|     /usr/share/fonts/default/Type1,
 | |
|     /usr/share/fonts/default/ghostscript
 | |
| .fi
 | |
| 
 | |
| .SH FILES
 | |
| .TP 30
 | |
| .I /etc/X\fBn\fP.hosts
 | |
| Initial access control list for display number \fBn\fP
 | |
| .TP 30
 | |
| .IR __projectroot__/lib/X11/fonts/misc , __projectroot__/lib/X11/fonts/75dpi , __projectroot__/lib/X11/fonts/100dpi
 | |
| Bitmap font directories
 | |
| .TP 30
 | |
| .IR __projectroot__/lib/X11/fonts/TTF , __projectroot__/lib/X11/fonts/Type1
 | |
| Outline font directories
 | |
| .TP 30
 | |
| .I __projectroot__/share/X11/rgb.txt
 | |
| Color database
 | |
| .TP 30
 | |
| .I /tmp/.X11-unix/X\fBn\fP
 | |
| Unix domain socket for display number \fBn\fP
 | |
| .TP 30
 | |
| .IR /tmp/rcX\fBn\fP
 | |
| Kerberos 5 replay cache for display number \fBn\fP
 | |
| .TP 30
 | |
| .I /usr/adm/X\fBn\fPmsgs
 | |
| Error log file for display number \fBn\fP if run from \fIinit\fP(__adminmansuffix__)
 | |
| .TP 30
 | |
| .I __projectroot__/lib/X11/xdm/xdm-errors
 | |
| Default error log file if the server is run from \fIxdm\fP(1)
 | |
| .TP 30
 | |
| .I __projectroot__/lib/xserver/SecurityPolicy
 | |
| Default X server security policy
 | |
| .SH "SEE ALSO"
 | |
| General information: \fIX\fP(__miscmansuffix__)
 | |
| .PP
 | |
| Protocols:
 | |
| .I "X Window System Protocol,"
 | |
| .I "The X Font Service Protocol,"
 | |
| .I "X Display Manager Control Protocol"
 | |
| .PP
 | |
| Fonts: \fIbdftopcf\fP(1), \fImkfontdir\fP(1), \fImkfontscale\fP(1),
 | |
| \fIxfs\fP(1), \fIxlsfonts\fP(1), \fIxfontsel\fP(1), \fIxfd\fP(1),
 | |
| .I "X Logical Font Description Conventions"
 | |
| .PP
 | |
| Security: \fIXsecurity\fP(__miscmansuffix__), \fIxauth\fP(1), \fIXau\fP(1), 
 | |
| \fIxdm\fP(1), \fIxhost\fP(1), \fIxfwp\fP(1),
 | |
| \fISecurityPolicy\fP(__filemansuffix__),
 | |
| .I "Security Extension Specification"
 | |
| .PP
 | |
| Starting the server: \fIxdm\fP(1), \fIxinit\fP(1)
 | |
| .PP
 | |
| Controlling the server once started: \fIxset\fP(1), \fIxsetroot\fP(1),
 | |
| \fIxhost\fP(1)
 | |
| .PP
 | |
| Server-specific man pages:
 | |
| \fIXorg\fP(1), \fIXdmx\fP(1), \fIXnest\fP(1),
 | |
| \fIXvfb\fP(1), \fIXDarwin\fP(1), \fIXWin\fP(1).
 | |
| .PP
 | |
| Server internal documentation:
 | |
| .I "Definition of the Porting Layer for the X v11 Sample Server"
 | |
| .SH AUTHORS
 | |
| The sample server was originally written by Susan Angebranndt, Raymond
 | |
| Drewry, Philip Karlton, and Todd Newman, from Digital Equipment
 | |
| Corporation, with support from a large cast.  It has since been
 | |
| extensively rewritten by Keith Packard and Bob Scheifler, from MIT.
 | |
| Dave Wiggins took over post-R5 and made substantial improvements.
 |