NAME

xdpyinfo - display information utility for X

SYNOPSIS

xdpyinfo [-display displayname]

DESCRIPTION

Xdpyinfo is a utility which displays 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 the X11/NeWS server running on a 1-plane screen and an 8-plane (color) screen. 

name of display:    :0.0
version number:    11.0
vendor string:    X11/NeWS - Sun Microsystems Inc.
vendor release number:    2000
maximum request size:  16384 longwords (65536 bytes)
motion buffer size:  100
bitmap unit, bit order, padding:    32, MSBFirst, 32
image byte order:    MSBFirst
number of supported pixmap formats:    2
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
keycode range:    minimum 8, maximum 129
number of extensions:    2
    SunWindowGrabber
    MIT-SHM
default screen number:    1
number of screens:    2
 screen #0:
  dimensions:    1600x1280 pixels (489x391 millimeters)
  resolution:    83x83 dots per inch
  depths (1):    1
  root window id:    0x80069
  depth of root window:    1 plane
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x80067
  default number of colormap cells:    2
  preallocated pixels:    black 1, white 0
  options:    backing-store YES, save-unders YES
  current input event mask:    0x50031d
    KeyPressMask             ButtonPressMask          ButtonReleaseMask
    EnterWindowMask          Button1MotionMask        Button2MotionMask
    SubstructureRedirectMask PropertyChangeMask
  number of visuals:    1
  default visual id:  0x80068
  visual:
    visual id:    0x80068
    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 (352x275 millimeters)
  resolution:    83x83 dots per inch
  depths (1):    8
  root window id:    0x80071
  depth of root window:    8 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x8006b
  default number of colormap cells:    256
  preallocated pixels:    black 1, white 0
  options:    backing-store YES, save-unders YES
  current input event mask:    0x50031d
    KeyPressMask             ButtonPressMask          ButtonReleaseMask
    EnterWindowMask          Button1MotionMask        Button2MotionMask
    SubstructureRedirectMask PropertyChangeMask
  number of visuals:    4
  default visual id:  0x8006d
  visual:
    visual id:    0x8006d
    class:    PseudoColor
    depth:    8 planes
    size of colormap:    256 entries
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x8006e
    class:    StaticColor
    depth:    8 planes
    size of colormap:    256 entries
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x8006f
    class:    GrayScale
    depth:    8 planes
    size of colormap:    256 entries
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x80070
    class:    StaticGray
    depth:    8 planes
    size of colormap:    256 entries
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits

NOTES

The value provided for vendor release number is the OpenWindows release number multiplied by one thousand. 

ENVIRONMENT

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

SEE ALSO

X(1), xwininfo(1), xprop(1), xrdb(1), xnews(1)

COPYRIGHT

Copyright 1988, 1989, Massachusetts Institute of Technology. 
See X(1) for a full statement of rights and permissions. 

AUTHOR

Jim Fulton, MIT X Consortium

X Version 11  —  Last change: 8 May 1990  —  Last change: 8 May 1990