Provided by: x11-xserver-utils_7.5+2ubuntu1_i386 bug


       xrandr - primitive command line interface to RandR extension


       xrandr  [-help]   [-display  display]  [-q] [-v] [--verbose] [--dryrun]
       [--screen snum] [--q1] [--q12]
       RandR version 1.3 options
       [--current] [--noprimary]
       Per-output options
       [--scale xxy] [--transform a,b,c,d,e,f,g,h,i] [--primary]
       RandR version 1.2 options
       [--prop]  [--fb  widthxheight]  [--fbmm   widthxheight]   [--dpi   dpi]
       [--newmode   name   mode]   [--rmmode  name]  [--addmode  output  name]
       [--delmode output name]
       Per-output options
       [--output output] [--auto]  [--mode  mode]  [--preferred]  [--pos  xxy]
       [--rate  rate] [--reflect reflection] [--rotate orientation] [--left-of
       output] [--right-of output] [--above output] [--below output]  [--same-
       as  output]  [--set  property  value]  [--off]  [--crtc  crtc] [--gamma
       red:green:blue] [--brightness brightness]

       RandR version 1.0 and version 1.1 options
       [-o orientation] [-s size] [-r rate] [-x] [-y]


       Xrandr is used to set the size, orientation and/or  reflection  of  the
       outputs for a screen. It can also set the screen size.

       If  invoked  without any option, it will dump the state of the outputs,
       showing the existing modes for each of  them,  with  a  '+'  after  the
       preferred mode and a '*' after the current mode.

       There  are  a  few global options. Other options modify the last output
       that is specified in earlier parameters in the command  line.  Multiple
       outputs  may  be modified at the same time by passing multiple --output
       options followed immediately by their corresponding modifying  options.

       -help  Print out a summary of the usage and exit.

       -v, --version
              Print out the RandR version reported by the X server and exit.

              Causes  xrandr to be more verbose. When used with -q (or without
              other options), xrandr will display more information  about  the
              server   state.  Please  note  that  the  gamma  and  brightness
              informations are  only  approximations  of  the  complete  color
              profile  stored in the server. When used along with options that
              reconfigure  the  system,  progress  will  be   reported   while
              executing the configuration changes.

       -q, --query
              When  this  option  is present, or when no configuration changes
              are requested, xrandr will display  the  current  state  of  the

              Performs  all  the  actions specified except that no changes are

              Apply the modifications without grabbing the screen.  It  avoids
              to  block other applications during the update but it might also
              cause some applications that detect screen resize to receive old

       -d, -display name
              This  option  selects  the X display to use. Note this refers to
              the X screen abstraction, not the monitor (or output).

       --screen snum
              This option selects which screen to manipulate. Note this refers
              to the X screen abstraction, not the monitor (or output).

       --q1   Forces  the  usage  of the RandR version 1.1 protocol, even if a
              higher version is available.

       --q12  Forces the usage of the RandR version 1.2 protocol, even if  the
              display  does  not report it as supported or a higher version is

RandR version 1.3 options

       Options for RandR 1.3 are used as a superset of the options  for  RandR

              Return  the  current  screen  configuration, without polling for
              hardware changes.

              Don't define a primary output.

       Per-output options

              This option sets the panning parameters.  As soon as panning  is
              enabled,  the  CRTC position can change with every pointer move.
              The first four parameters specify the total  panning  area,  the
              next  four the pointer tracking area (which defaults to the same
              area). The last four parameters specify the border  and  default
              to  0.  A  width  or  height set to zero disables panning on the
              according axis. You typically have to set the screen  size  with
              --fb simultaneously.

       --transform a,b,c,d,e,f,g,h,i
              Specifies  a  transformation  matrix  to  apply  on  the output.
              Automatically a bilinear filter is selected.   The  mathematical
              form corresponds to:
                     a b c
                     d e f
                     g h i
              The  transformation  is  based  on  homogeneous coordinates. The
              matrix multiplied by the coordinate vector of  a  pixel  of  the
              output gives the transformed coordinate vector of a pixel in the
              graphic buffer.  More precisely, the vector (x y) of the  output
              pixel  is  extended  to  3  values  (x  y  w),  with  1 as the w
              coordinate and multiplied against the matrix. The  final  device
              coordinates  of the pixel are then calculated with the so-called
              homogenic division by the transformed w  coordinate.   In  other
              words,  the  device coordinates (x' y') of the transformed pixel
                     x' = (ax + by + c) / w'   and
                     y' = (dx + ey + f) / w'   ,
                     with  w' = (gx + hy + i)  .
              Typically, a and e corresponds to the scaling on  the  X  and  Y
              axes,  c and f corresponds to the translation on those axes, and
              g, h, and i are respectively 0, 0 and 1. The matrix can also  be
              used  to  express  more complex transformations such as keystone
              correction, or rotation.  For a rotation of  an  angle  T,  this
              formula can be used:
                     cos T  -sin T   0
                     sin T   cos T   0
                      0       0      1
              As a special argument, instead of passing a matrix, one can pass
              the string none, in which case the default values  are  used  (a
              unit matrix without filter).

       --scale xxy
              Changes the dimensions of the output picture. Values superior to
              1 will lead to a compressed screen (screen dimension bigger than
              the dimension of the output mode), and values below 1 leads to a
              zoom in on the  output.  This  option  is  actually  a  shortcut
              version of the --transform option.

              Set  the output as primary.  It will be sorted first in Xinerama
              and RANDR geometry requests.

RandR version 1.2 options

       These options are only available for X server supporting RandR  version
       1.2 or newer.

       --prop, --properties
              This  option causes xrandr to display the contents of properties
              for each output. --verbose also enables --prop.

       --fb widthxheight
              Reconfigures the screen to the specified  size.  All  configured
              monitors  must  fit  within  this  size. When this option is not
              provided, xrandr computes the smallest  screen  size  that  will
              hold  the  set of configured outputs; this option provides a way
              to override that behaviour.

       --fbmm widthxheight
              Sets the reported values for the physical size  of  the  screen.
              Normally,  xrandr  resets  the  reported physical size values to
              keep the DPI constant.  This overrides that computation.

       --dpi dpi
              This also sets the reported physical size values of the  screen,
              it  uses  the  specified  DPI  value  to  compute an appropriate
              physical size using whatever pixel size will be set.

       --newmode name mode
              New modelines can be added to the  server  and  then  associated
              with  outputs.   This  option  does  the  former.  The  mode  is
              specified  using  the  ModeLine  syntax  for  xorg.conf:   hdisp
              hsyncstart  hsyncend  htotal  vdisp  vsyncstart  vsyncend vtotal
              flags. flags can be zero or  more  of  +HSync,  -HSync,  +VSync,
              -VSync,  Interlace,  DoubleScan,  CSync, +CSync, -CSync. Several
              tools permit to compute the usual modeline from a height, width,
              and refresh rate, for instance you can use cvt.

       --rmmode name
              This removes a mode from the server if it is otherwise unused.

       --addmode output name
              Add a mode to the set of valid modes for an output.

       --delmode output name
              Remove a mode from the set of valid modes for an output.

       Per-output options

       --output output
              Selects  an  output  to  reconfigure. Use either the name of the
              output or the XID.

       --auto For connected but disabled outputs, this will enable them  using
              their  preferred mode (or, something close to 96dpi if they have
              no preferred mode). For disconnected but enabled  outputs,  this
              will disable them.

       --mode mode
              This selects a mode. Use either the name or the XID for mode

              This   selects   the   same  mode  as  --auto,  but  it  doesn't
              automatically enable or disable the output.

       --pos xxy
              Position the output within the screen using  pixel  coordinates.
              In  case  reflection  or rotation is applied, the translation is
              applied after the effects.

       --rate rate
              This marks a preference for refresh rates close to the specified
              value,  when multiple modes have the same name, this will select
              the one with the nearest refresh rate.

       --reflect reflection
              Reflection can be one of 'normal' 'x', 'y' or 'xy'. This  causes
              the output contents to be reflected across the specified axes.

       --rotate rotation
              Rotation  can be one of 'normal', 'left', 'right' or 'inverted'.
              This causes the output contents to be rotated in  the  specified
              direction. 'right' specifies a clockwise rotation of the picture
              and 'left' specifies a counter-clockwise rotation.

       --left-of, --right-of, --above, --below, --same-as another-output
              Use one of these options to position the output relative to  the
              position  of  another  output.  This allows convenient tiling of
              outputs within the screen.   The  position  is  always  computed
              relative  to  the new position of the other output, so it is not
              valid to say --output a --left-of b --output b --left-of a.

       --set property value
              Sets an output property. Integer properties may be specified  as
              a  valid (see --prop) decimal or hexadecimal (with a leading 0x)
              value. Atom properties may be set to any of the valid atoms (see
              --prop). String properties may be set to any value.

       --off  Disables the output.

       --crtc crtc
              Uses the specified crtc (either as an index in the list of CRTCs
              or XID).  In normal usage, this option is not required as xrandr
              tries to make sensible choices about which crtc to use with each
              output. When  that  fails  for  some  reason,  this  option  can
              override the normal selection.

       --gamma red:green:blue
              Set  the  specified floating point values as gamma correction on
              the crtc currently attached to this output. Note that you cannot
              get  two  different values for cloned outputs (i.e.: which share
              the same crtc) and that switching  an  output  to  another  crtc
              doesn't change the crtc gamma corrections at all.

       --brightness brightness
              Multiply  the gamma values on the crtc currently attached to the
              output to specified floating value. Useful for overly bright  or
              overly   dim   outputs.    However,  this  is  a  software  only
              modification, if your hardware has support  to  actually  change
              the brightness, you will probably prefer to use xbacklight.

RandR version 1.1 options

       These  options are available for X servers supporting RandR version 1.1
       or older. They are still valid for newer  X  servers,  but  they  don't
       interact sensibly with version 1.2 options on the same command line.

       -s, --size size-index or --size widthxheight
              This  sets the screen size, either matching by size or using the
              index into the list of available sizes.

       -r, --rate, --refresh rate
              This sets the refresh rate closest to the specified value.

       -o, --orientation rotation
              This specifies the orientation of the screen, and can be one  of
              normal, inverted, left or right.

       -x     Reflect across the X axis.

       -y     Reflect across the Y axis.


       Sets  an output called LVDS to its preferred mode, and on its right put
       an output called VGA to preferred mode  of  a  screen  which  has  been
       physically rotated clockwise:
              xrandr  --output  LVDS --auto --rotate normal --pos 0x0 --output
              VGA --auto --rotate left --right-of LVDS

       Forces to use a 1024x768 mode on an output called VGA:
              xrandr --newmode "1024x768" 63.50  1024 1072 1176 1328  768  771
              775 798 -hsync +vsync
              xrandr --addmode VGA 1024x768
              xrandr --output VGA --mode 1024x768

       Enables panning on a 1600x768 desktop while displaying 1024x768 mode on
       an output called VGA:
              xrandr --fb 1600x768  --output  VGA  --mode  1024x768  --panning

       Have  one  small 1280x800 LVDS screen showing a small version of a huge
       3200x2000 desktop, and have a big VGA screen display the surrounding of
       the mouse at normal size.
              xrandr --fb 3200x2000 --output LVDS --scale 2.5x2.5 --output VGA
              --pos 0x0 --panning 3200x2000+0+0/3200x2000+0+0/64/64/64/64

       Displays the VGA output in trapezoid  shape  so  that  it  is  keystone
       corrected when the projector is slightly above the screen:
              xrandr     --fb     1024x768     --output     VGA    --transform


       Xrandr(3), cvt(1), xkeystone(1), xbacklight(1)


       Keith Packard, Open Source Technology Center, Intel  Corporation.   and
       Jim Gettys, Cambridge Research Laboratory, HP Labs, HP.