xdpyinfo(X)                     19 June 1992                     xdpyinfo(X)


 Name

    xdpyinfo - display information utility for X

 Syntax

    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 avail-
    able.

 Example

    The following shows a sample produced by xdpyinfo when connected to dis-
    play that supports an 8 plane screen and a 1 plane screen.

    name of display:    :0.0
    version number:    11.0
    vendor string:    MIT X Consortium
    vendor release number:    4
    maximum request size:  16384 longwords (65536 bytes)
    motion buffer size:  0
    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:    4
        SHAPE
        MIT-SHM
        Multi-Buffering
        MIT-SUNDRY-NONSTANDARD
    default screen number:    0
    number of screens:    2

    screen #0:
      dimensions:    1152x900 pixels (325x254 millimeters)
      resolution:    90x90 dots per inch
      depths (2):    1, 8
      root window id:    0x8006e
      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:    0xd0801d
        KeyPressMask             ButtonPressMask          ButtonReleaseMask
        EnterWindowMask          ExposureMask             SubstructureRedirectMask
        PropertyChangeMask       ColormapChangeMask
      number of visuals:    6
      default visual id:  0x80065
      visual:
        visual id:    0x80065
        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:    0x80066
        class:    DirectColor
        depth:    8 planes
        size of colormap:    8 entries
        red, green, blue masks:    0x7, 0x38, 0xc0
        significant bits in color specification:    8 bits
      visual:
        visual id:    0x80067
        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:    0x80068
        class:    StaticGray
        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:    0x80069
        class:    StaticColor
        depth:    8 planes
        size of colormap:    256 entries
        red, green, blue masks:    0x7, 0x38, 0xc0
        significant bits in color specification:    8 bits
      visual:
        visual id:    0x8006a
        class:    TrueColor
        depth:    8 planes
        size of colormap:    8 entries
        red, green, blue masks:    0x7, 0x38, 0xc0
        significant bits in color specification:    8 bits
      number of mono multibuffer types:    6
        visual id, max buffers, depth:    0x80065, 0, 8
        visual id, max buffers, depth:    0x80066, 0, 8
        visual id, max buffers, depth:    0x80067, 0, 8
        visual id, max buffers, depth:    0x80068, 0, 8
        visual id, max buffers, depth:    0x80069, 0, 8
        visual id, max buffers, depth:    0x8006a, 0, 8
      number of stereo multibuffer types:    0

    screen #1:
      dimensions:    1152x900 pixels (325x254 millimeters)
      resolution:    90x90 dots per inch
      depths (1):    1
      root window id:    0x80070
      depth of root window:    1 plane
      number of colormaps:    minimum 1, maximum 1
      default colormap:    0x8006c
      default number of colormap cells:    2
      preallocated pixels:    black 1, white 0
      options:    backing-store YES, save-unders YES
      current input event mask:    0xd0801d
        KeyPressMask             ButtonPressMask          ButtonReleaseMask
        EnterWindowMask          ExposureMask             SubstructureRedirectMask
        PropertyChangeMask       ColormapChangeMask
      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
      number of mono multibuffer types:    1
        visual id, max buffers, depth:    0x80064, 0, 1
      number of stereo multibuffer types:    0

 Environment


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

 See also

    X(X)
    xwininfo(X)
    xprop(X)
    xrdb(X)