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NAME

xdpyinfo − display information utility for X. 

SYNTAX

xdpyinfo [option]

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.  See Chapter 8, Other Clients, for more information. 

OPTION

xdpyinfo accepts the following option:

-display [host]:server[.screen]
Specifies the display about which xdpyinfo should display information.  host is the hostname of the physical display, server specifies the server number, and screen specifies the screen number.  By default, xdpyinfo displays information about all screens on the display.  For example, % xdpyinfo -display your_node:0.0 displays information about all screens of server 0 of the display named by your_node.  If the hostname is omitted, the local display is assumed.  If the screen is omitted, screen 0 is assumed.  The server and colon (:) are necessary in all cases. 

SAMPLE OUTPUT 

The following example shows the output produced by xdpyinfo when connected to a display 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 focus:  PointerRoot 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

SEE ALSO

X, xwininfo, xprop, xrdb; Chapter 8, Other Clients. 

AUTHOR

Jim Fulton, MIT X Consortium. 

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026