XDPYINFO(1)                          SysV                          XDPYINFO(1)



NAME
     xdpyinfo - display information utility for X

SYNOPSIS
     xdpyinfo [-display displayname]

DESCRIPTION
     Xdpyinfo is a utility for displaying information about an X server.  It
     is used to examine the capabilities of a server, the predefined values
     for various parameters used in communicating between clients and the
     server, and the different types of screens and visuals that are
     available.

EXAMPLE
     The following shows a sample produced by xdpyinfo when connected to
     display that supports an 8 plane Pseudocolor screen as well as a 1 plane
     (monochrome) screen.

     name of display:    empire:0.0
     version number:    11.0
     vendor string:    MIT X Consortium
     vendor release number:    3
     maximum request size:  16384 longwords (65536 bytes)
     motion buffer size:  0
     bitmap unit, bit order, padding:    32, MSBFirst, 32
     image byte order:    MSBFirst
     keycode range:    minimum 8, maximum 129
     default screen number:    0
     number of screens:    2

     screen #0:
       dimensions:    1152x900 pixels (325x254 millimeters)
       resolution:    90x90 dots per inch
       root window id:    0x8006d
       depth of root window:    1 plane
       number of colormaps:    minimum 1, maximum 1
       default colormap:    0x80065
       default number of colormap cells:    2
       preallocated pixels:    black 1, white 0
       options:    backing-store YES, save-unders YES
       current input event mask:    0x1b8003c
         ButtonPressMask          ButtonReleaseMask        EnterWindowMask
         LeaveWindowMask          SubstructureNotifyMask   SubstructureRedirectMask
         FocusChangeMask          ColormapChangeMask       OwnerGrabButtonMask
       number of visuals:    1
       default visual id:  0x80064
       visual:
         visual id:    0x80064
         class:    StaticGray
         depth:    1 plane
         size of colormap:    2 entries
         red, green, blue masks:    0x0, 0x0, 0x0
         significant bits in color specification:    1 bits

     screen #1:
       dimensions:    1152x900 pixels (325x254 millimeters)
       resolution:    90x90 dots per inch
       root window id:    0x80070
       depth of root window:    8 planes
       number of colormaps:    minimum 1, maximum 1
       default colormap:    0x80067

       default number of colormap cells:    256
       preallocated pixels:    black 1, white 0
       options:    backing-store YES, save-unders YES
       current input event mask:    0x0
       number of visuals:    1
       default visual id:  0x80066
       visual:
         visual id:    0x80066
         class:    PseudoColor
         depth:    8 planes
         size of colormap:    256 entries
         red, green, blue masks:    0x0, 0x0, 0x0
         significant bits in color specification:    8 bits


ENVIRONMENT
     DISPLAY To get the default host, display number, and screen.

SEE ALSO
     X(1), xwininfo(1), xprop(1), xrdb(1)

BUGS
     Due to a bug in the Xlib interface, there is currently no portable way to
     determine the depths of pixmap images that are supported by the server.

COPYRIGHT
     Copyright 1988, Massachusetts Institute of Technology.
     See X(1) for a full statement of rights and permissions.

AUTHOR
     Jim Fulton, MIT X Consortium