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author | marha <marha@users.sourceforge.net> | 2010-05-22 13:47:02 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-05-22 13:47:02 +0000 |
commit | 23e2ddeb0f81d5ee9c6d01cf0b768eeb1c27555c (patch) | |
tree | 984592e1d974c53df275b7c1226516406bc4a86d /xorg-server/doc/Xserver.man.pre | |
parent | 1a038249967b51878bc492df42e24b2af797bb85 (diff) | |
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xserver git update 22/5/2010
Diffstat (limited to 'xorg-server/doc/Xserver.man.pre')
-rw-r--r-- | xorg-server/doc/Xserver.man.pre | 1192 |
1 files changed, 592 insertions, 600 deletions
diff --git a/xorg-server/doc/Xserver.man.pre b/xorg-server/doc/Xserver.man.pre index 8144c8ad4..4926960c2 100644 --- a/xorg-server/doc/Xserver.man.pre +++ b/xorg-server/doc/Xserver.man.pre @@ -1,600 +1,592 @@ -.\" $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. -.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 -retro -starts the stipple with the classic stipple and cursor visible. The default -is to start with a black root window, and to suppress display of the cursor -until the first time an application calls XDefineCursor(). For the Xorg -server, this also sets the default for the DontZap option to FALSE. For -kdrive servers, this implies -zap. -.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 -.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 "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 \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 __datadir__/fonts/X11/misc , __datadir__/fonts/X11/75dpi , __datadir__/fonts/X11/100dpi -Bitmap font directories -.TP 30 -.IR __datadir__/fonts/X11/TTF , __datadir__/fonts/X11/Type1 -Outline font directories -.TP 30 -.I /tmp/.X11-unix/X\fBn\fP -Unix domain socket 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) -.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), -.I "Security Extension Specification" -.PP -Starting the server: \fIstartx\fP(1), \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), \fIXephyr\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. +.\" $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 \-br
+sets the default root window to solid black instead of the standard root weave
+pattern. This is the default unless -retro or -wr is specified.
+.TP 8
+.B \-bs
+disables backing store support on all screens.
+.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 \-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 \-nocursor
+disable the display of the pointer cursor.
+.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 -retro
+starts the stipple with the classic stipple and cursor visible. The default
+is to start with a black root window, and to suppress display of the cursor
+until the first time an application calls XDefineCursor(). For the Xorg
+server, this also sets the default for the DontZap option to FALSE. For
+kdrive servers, this implies -zap.
+.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
+.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 "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 \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 __datadir__/fonts/X11/misc , __datadir__/fonts/X11/75dpi , __datadir__/fonts/X11/100dpi
+Bitmap font directories
+.TP 30
+.IR __datadir__/fonts/X11/TTF , __datadir__/fonts/X11/Type1
+Outline font directories
+.TP 30
+.I /tmp/.X11-unix/X\fBn\fP
+Unix domain socket 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)
+.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),
+.I "Security Extension Specification"
+.PP
+Starting the server: \fIstartx\fP(1), \fIxdm\fP(1), \fIxinit\fP(1)
+.PP
+Controlling the server once started: \fIxset\fP(1), \fIxsetroot\fP(1),
+\fIxhost\fP(1), \fIxinput\fP(1), \fIxrandr\fP(1)
+.PP
+Server-specific man pages:
+\fIXorg\fP(1), \fIXdmx\fP(1), \fIXephyr\fP(1), \fIXnest\fP(1),
+\fIXvfb\fP(1), \fIXquartz\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.
|