XFree86(1)

NAME
XFree86 - X11R6 for UNIX on x86 platforms

DESCRIPTION
XFree86 is a collection of X servers for UNIX-like OSs on Intel x86 platforms. This work is derived from X386 1.2 which was contributed to X11R5 by Snitily Graphics Consulting Service.

CONFIGURATIONS

XFree86 operates under the following operating systems:

    -- SVR3.2: SCO 3.2.2, 3.2.4
    -- SVR4.0: ESIX, Microport, Dell, UHC, Consensys, MST, ISC, AT&T, NCR
    -- SVR4.2: Consensys, Univel (UnixWare)
    -- Solaris (x86) 2.1, 2.4
    -- FreeBSD 1.1.5, 2.0, NetBSD 1.0 (i386 port only)
    -- BSD/386 version 1.1
    -- Mach (from CMU)
    -- Linux
    -- Amoeba version 5.1
    -- Minix-386vm version 1.6.25.1

NETWORK CONNECTIONS
XFree86 supports connections made using the following reliable byte-streams:

Local
    XFree86 supports local connections via Streams pipe via various mechanisms, using the following paths (n represents the display number):

    /dev/X/server.n (SVR3 and SVR4)
    /dev/X/Nserver.n (SVR4)
    /dev/XnS and /dev/XnR (SCO SVR3)

    On SVR4.0.4, if the Advanced Compatibility Package is installed, and in SVR4.2, XFree86 supports local connections from clients for SCO XSight/ODT, and (with modifications to the binary) clients for ISC SVR3.

Unix Domain
    XFree86 uses /tmp/.X11-unix/Xn as the filename for the socket, where n is the display number.

TCPIP
    XFree86 listens on port htons(6000+n), where n is the display number.

Amoeba RPC
    This is the default communication medium used under native Amoeba. Note that under Amoeba, the server should be started with a ``hostname:displaynumber'' argument.

ENVIRONMENT VARIABLES
For operating systems that support local connections other than Unix Domain sockets (SVR3 and SVR4), there is a compiled-in list specifying the order in which local connections should be attempted. This list can be overridden by the XLOCAL environment variable described below. If the display name indicates a best-choice connection should be made (e.g. :0.0), each connection mechanism is tried until a connection succeeds or no more mechanisms are available. Note: for these OSs, the Unix Domain socket connection is treated differently from the other local connection types. To use it the connection must be made to unix:0.0.

The XLOCAL environment variable should contain a list of one more more of the following:

NAMED
PTS
SCO
ISC

which represent SVR4 Named Streams pipe, Old-style USL Streams pipe, SCO XSight Streams pipe, and ISC Streams pipe, respectively. You can select a single mechanism (e.g. XLOCAL=NAMED), or an ordered list (e.g. XLOCAL="NAMED:PTS:SCO"). This variable overrides the compiled-in defaults. For SVR4 it is recommended that NAMED be the first preference connection. The default setting is PTS:NAMED:ISC:SCO.

To globally override the compiled-in defaults, you should define (and export if using sh or ksh) XLOCAL globally. If you use startx/xinit, the definition should be at the top of your .xinitrc file. If you use xdm, the definitions should be early on in the <XRoot>/lib/X11/xdm/Xsession script.

OPTIONS
In addition to the normal server options described in the Xserver(1) manual page, XFree86 accepts the following command line switches:

vtXX
    XX specifies the Virtual Terminal device number which XFree86 will use. Without this option, XFree86 will pick the first available Virtual Terminal that it can locate. This option applies only to SVR3, SVR4, Linux, and BSD OSs with the `syscons' or `pcvt' driver.

-probeonly
    Causes the server to exit after the device probing stage. The XF86Config file is still used when this option is given, so information that can be auto-detected should be commented out.

-quiet
    Suppress most informational messages at startup.

-bpp n
    Set number of bits per pixel. The default is 8. Legal values are 8, 15, 16, 24, 32. Not all servers support all values.

-weight nnn
    Set RGB weighting at 16 bpp. The default is 565. This applies only to those servers which support 16 bpp.

-gamma value
    Set the gamma correction. value must be between 0.1 and 10. The default is 1.0 This value is applied equally to the R, G and B values. Not all servers support this.

-rgamma value
    Set the red gamma correction. value must be between 0.1 and 10. The default is 1.0 Not all servers support this.

-ggamma value
    Set the green gamma correction. value must be between 0.1 and 10. The default is 1.0 Not all servers support this.

-bgamma value
    Set the blue gamma correction. value must be between 0.1 and 10. The default is 1.0 Not all servers support this.

-showconfig
    Print out a list of screen drivers configured in the server.

-verbose
    Maximise information printed at startup (this is the default).

-xf86config file
    Read the server configuration from file. This option is only available when the server is run as root (i.e, with real-uid 0).

-keeptty
    Prevent the server from detaching its initial controlling terminal. This option is only useful when debugging the server.

KEYBOARD
Multiple key presses recognized directly by XFree86 are:

Ctrl+Alt+Backspace
    Immediately kills the server -- no questions asked. (Can be disabled by specifying "DontZap" in the ServerFlags section of the XF86Config file.)

Ctrl+Alt+Keypad-Plus
    Change video mode to next one specified in the configuration file, (increasing video resolution order).

Ctrl+Alt+Keypad-Minus
    Change video mode to previous one specified in the configuration file, (decreasing video resolution order).

Ctrl+Alt+F1...F12
    For BSD systems using the syscons driver and Linux, these keystroke combinations are used to switch to Virtual Console 1 through 12.

SETUP
XFree86 uses a configuration file called XF86Config for its initial setup. Refer to the XF86Config(4/5) manual page for more information.

FILES

<XRoot>/bin/XF86_SVGA
    The color SVGA X server

<XRoot>/bin/XF86_Mono
    The monochrome X server for VGA and other mono cards

<XRoot>/bin/XF86_S3
    The accelerated S3 X server

<XRoot>/bin/XF86_Mach8
    The accelerated Mach8 X server

<XRoot>/bin/XF86_Mach32
    The accelerated Mach32 X server

<XRoot>/bin/XF86_Mach64
    The accelerated Mach64 X server

<XRoot>/bin/XF86_P9000
    The accelerated P9000 X server

<XRoot>/bin/XF86_AGX
    The accelerated AGX X server

<XRoot>/bin/XF86_W32
    The accelerated ET4000/W32 X server

<XRoot>/bin/XF86_8514
    The accelerated 8514/A X server

/etc/XF86Config
    Server configuration file

<XRoot>/lib/X11/XF86Config.hostname
    Server configuration file

<XRoot>/lib/X11/XF86Config
    Server configuration file

<XRoot>/bin/*
    Client binaries

<XRoot>/include/*
    Header files

<XRoot>/lib/*
    Libraries

<XRoot>/lib/X11/fonts/*
    Fonts

<XRoot>/lib/X11/rgb.txt
    Color names to RGB mapping

<XRoot>/lib/X11/XErrorDB
    Client error message database

<XRoot>/lib/X11/app-defaults/*
    Client resource specifications

<XRoot>/man/man?/*
    Manual pages

/etc/Xn.hosts
    Initial access control list for display n

Note: <XRoot> refers to the root of the X11 install tree.

SEE ALSO
X(1), Xserver(1), xdm(1), xinit(1), XF86Config(4/5), xf86config(1), XF86_SVGA(1), XF86_VGA16(1), XF86_Mono(1), XF86_Accel(1)

AUTHORS

For X11R5, XF86 1.2 was provided by:

Thomas Roell,      roell@informatik.tu-muenchen.de
    TU-Muenchen: Server and SVR4 stuff

Mark W. Snitily,   mark@sgcs.com
    SGCS: SVR3 support, X Consortium Sponsor

 ... and many more people out there on the net who helped with ideas and bug-fixes.

XFree86 was integrated into X11R6 by the following team:

Stuart Anderson    Stuart.Anderson@ColumbiaSC.NCR.COM
Doug Anson         danson@lgc.com
Gertjan Akkerman   akkerman@dutiba.twi.tudelft.nl
Mike Bernson       mike@mbsun.mlb.org
Robin Cutshaw      robin@XFree86.org
David Dawes        dawes@XFree86.org
Marc Evans         marc@XFree86.org
Pascal Haible      haible@izfm.uni-stuttgart.de
Matthieu Herrb     Matthieu.Herrb@laas.fr
Dirk Hohndel       hohndel@XFree86.org
David Holland      davidh@use.com
Alan Hourihane     alanh@fairlite.demon.co.uk
Jeffrey Hsu        hsu@soda.berkeley.edu
Glenn Lai          glenn@cs.utexas.edu
Ted Lemon          mellon@ncd.com
Rich Murphey       rich@XFree86.org
Hans Nasten        nasten@everyware.se
Mark Snitily       mark@sgcs.com
Randy Terbush      randyt@cse.unl.edu
Jon Tombs          tombs@XFree86.org
Kees Verstoep      versto@cs.vu.nl
Paul Vixie         paul@vix.com
Mark Weaver        Mark_Weaver@brown.edu
David Wexelblat    dwex@XFree86.org
Philip Wheatley    Philip.Wheatley@ColumbiaSC.NCR.COM
Thomas Wolfram     wolf@prz.tu-berlin.de
Orest Zborowski    orestz@eskimo.com

The XFree86 enhancement package was provided by:

David Dawes,       dawes@XFree86.org
    Administration of FTP repository and mailing lists. Source tree management and integration, accelerated server integration, fixing, and coding.

Glenn Lai,         glenn@cs.utexas.edu
    The SpeedUp code for ET4000 based SVGA cards, and ET4000/W32 accelerated server.

Jim Tsillas,       jtsilla@ccs.neu.edu
    Many server speedups from the fXF86 series of enhancements.

David Wexelblat,   dwex@XFree86.org
    Release coordination, integration of the fXF86 code into the default server, many driver fixes, and driver documentation, assembly of the VGA card/monitor database, development of the generic video mode listing. Accelerated server integration, fixing, and coding.

Dirk Hohndel,      hohndel@XFree86.org
    Linux shared libraries and release coordination. Accelerated server integration and fixing. Generic administrivia and documentation.

Amancio Hasty Jr., hasty@netcom.com
    Porting to 386BSD version 0.1 and XS3 development.

Rich Murphey,      rich@XFree86.org
    Ported to 386BSD version 0.1 based on the original port by Pace Willison. Support for 386BSD, FreeBSD, and NetBSD.

Robert Baron,      Robert.Baron@ernst.mach.cs.cmu.edu
    Ported to Mach.

Orest Zborowski,   orestz@eskimo.com
    Ported to Linux.

Doug Anson,        danson@lgc.com
    Ported to Solaris x86.

David Holland,     davidh@use.com
    Ported to Solaris x86.

David McCullough,  davidm@stallion.oz.au
    Ported to SCO SVR3.

Kees Verstoep,     versto@cs.vu.nl
    Ported to Amoeba based on Leendert van Doorn's original Amoeba port of X11R5.

Marc Evans,        Marc@XFree86.org
    Ported to OSF/1.

Philip Homburg,    philip@cs.vu.nl
    Ported to Minix-386vm.

Jon Tombs,         tombs@XFree86.org
    S3 server and accelerated server coordination.

Harald Koenig,     koenig@tat.physik.uni-tuebingen.de
    S3 server development.

Bernhard Bender,   br@elsa.mhs.compuserve.com
    S3 server development.

Kevin Martin,      martin@cs.unc.edu
    Overall work on the base accelerated servers (ATI and 8514/A), and Mach64 server.

Rik Faith,         faith@cs.unc.edu
    Overall work on the base accelerated servers (ATI and 8514/A).

Tiago Gons,        tiago@comosjn.hobby.nl
    Mach8 and 8514/A server development

Hans Nasten,       nasten@everyware.se
    Mach8, 8514/A, and S3 server development and BSD/386 support

Mike Bernson,      mike@mbsun.mlb.org
    Mach32 server development.

Mark Weaver,       Mark_Weaver@brown.edu
    Mach32 server development.

Craig Groeschel,   craig@metrolink.com
    Mach32 server development.

Henry Worth,       Henry.Worth@amail.amdahl.com
    AGX server.

Erik Nygren,       nygren@mit.edu
    P9000 server.

Harry Langenbacher harry@brain.jpl.nasa.gov
    P9000 server.

Chris Mason,       mason@mail.csh.rit.edu
    P9000 server.

Simon Cooper,      scooper@vizlab.rutgers.edu
    Cirrus accelerated code (based on work by Bill Reynolds).

Harm Hanemaayer,   hhanemaa@cs.ruu.nl
    Cirrus accelerated code.

Mike Tierney,      floyd@eng.umd.edu
    WD accelerated code.

Bill Conn,         conn@bnr.ca
    WD accelerated code.

Steve Goldman,     sgoldman@encore.com
    Oak 067/077 SVGA driver.

Jorge Delgado,     ernar@dit.upm.es
    Oak SVGA driver, and 087 accelerated code.

Bill Conn,         conn@bnr.ca
    WD accelerated code.

Paolo Severini,    lendl@dist.dist.unige.it
    AL2101 SVGA driver

Ching-Tai Chiu,    cchiu@netcom.com
    Avance Logic ALI SVGA driver

Manfred Brands     mb@oceonics.nl
    Cirrus 64xx SVGA driver

Randy Hendry       randy@sgi.com
    Cirrus 64xx SVGA driver

Frank Dikker       dikker@cs.utwente.nl
    MX SVGA driver

Craig Struble      cstruble@acm.vt.edu
    Video7 SVGA driver

Gertjan Akkerman,  akkerman@dutiba.twi.tudelft.nl
    16 colour VGA server, and XF86Config parser.

Davor Matic,       dmatic@Athena.MIT.EDU
    Hercules driver.

Pascal Haible,     haible@izfm.uni-stuttgart.de
    Banked monochrome VGA support, Hercules support, and mono frame buffer support for dumb monochrome devices

 ... and many more people out there on the net who helped with beta-testing this enhancement.

XFree86 source is available from the FTP server ftp.XFree86.org, among others. Send email to XFree86@XFree86.org for details.