Provided by: x11-xserver-utils_7.7+9build1_amd64 bug


       xrandr - primitive command line interface to RandR extension


       xrandr  [--help]   [--display  display]  [-q]  [-v] [--verbose] [--dryrun] [--screen snum]
       [--q1]          [--q12]           [--current]           [--noprimary]           [--panning
       [--scale x[xy]] [--scale-from wxh] [--transform  a,b,c,d,e,f,g,h,i]  [--primary]  [--prop]
       [--fb  widthxheight] [--fbmm widthxheight] [--dpi dpi] [--dpi from-output] [--newmode name
       mode] [--rmmode name] [--addmode output name] [--delmode output  name]  [--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] [-o orientation] [-s size] [-r rate] [-x] [-y]
       [--listproviders]  [--setprovideroutputsource  provider  source] [--setprovideroffloadsink
       provider  sink]  [--listmonitors]  [--listactivemonitors]  [--setmonitor   name   geometry
       outputs] [--delmonitor name]


       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 modes and a '*' after the current

       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

       --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 system.

              Performs all the actions specified except that no changes are made.

              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 values.

       -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

       --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 available.

RandR version 1.5 options

       Options for RandR 1.5 are used as a superset of the options for RandR 1.4.

              Report information about all defined monitors.

              Report information about currently active monitors.

       --setmonitor name geometry outputs
              Define a new monitor with the given geometry and associated to the  given  outputs.
              The  output  list  is either the keyword none or a comma-separated list of outputs.
              The  geometry  is  either  the  keyword  auto,  in  which  case  the  monitor  will
              automatically   track   the  geometry  of  the  associated  outputs,  or  a  manual
              specification in the form w/mmwxh/mmh+x+y where w, h, x, y are in pixels  and  mmw,
              mmh are the physical dimensions of the monitor.

       --delmonitor name
              Delete the given user-defined monitor.

RandR version 1.4 options

       Options for RandR 1.4 are used as a superset of the options for RandR 1.3.

              Report information about the providers available.

       --setprovideroutputsource provider source
              Set  source  as  the  source  of  display output images for provider.  This is only
              possible  if  source  and  provider  have  the  Source  Output  and   Sink   Output
              capabilities,  respectively.   If source is 0x0, then provider is disconnected from
              its current output source.

       --setprovideroffloadsink provider sink
              Set provider as a render offload  device  for  sink.   This  is  only  possible  if
              provider   and  sink  have  the  Source  Offload  and  Sink  Offload  capabilities,
              respectively.  If sink is 0x0, then  provider  is  disconnected  from  its  current
              render offload sink.

RandR version 1.3 options

       Options for RandR 1.3 are used as a superset of the options for RandR 1.2.

              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.   A  bilinear  filter  is
              selected  automatically  unless  the  --filter  parameter  is  also specified.  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 are:
                     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).

       --filter filtermode
              Chooses  the  scaling  filter  method  to  be  applied when the screen is scaled or
              transformed.  Can be either 'bilinear' or 'nearest'.

       --scale x[xy]
              Changes the dimensions of the output picture.  If the y value  is  omitted,  the  x
              value  will be used for both dimensions.  Values larger than 1 lead to a compressed
              screen (screen dimension bigger than the dimension of the output mode), and  values
              less  than  1  lead to a zoom in on the output.  This option is actually a shortcut
              version of the --transform option.

       --scale-from wxh
              Specifies the size in pixels of the area of the framebuffer to be displayed on this
              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

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 value reported as physical size of the X screen as a whole (union  of  all
              configured monitors). In configurations with multiple monitors with different DPIs,
              the value has no physical meaning, but it may be used by some legacy clients  which
              do  not  support  RandR  version 1.2 to compute a reference font scaling. Normally,
              xrandr resets the reported physical size values to keep  the  DPI  constant.   This
              overrides that computation. Default DPI value is 96.

       --dpi dpi

       --dpi from-output
              This  also  sets  the  value  reported  as physical size of the X screen as a whole
              (union of all configured monitors). In configurations with multiple  monitors  with
              different  DPIs,  the  value  has  no  physical meaning, but it may be used by some
              legacy clients which do not support RandR version 1.2 to compute a  reference  font
              scaling.  This  option uses either the specified DPI value, or the DPI of the given
              output, to compute an appropriate physical size using whatever pixel size  will  be
              set.  Typical  values  are  the  default  (96  DPI), the DPI of the only monitor in
              single-monitor configurations, or the DPI of the primary monitor  in  multi-monitor

       --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:  clock 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  first
              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

       --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) comma-separated list of decimal or hexadecimal (with a leading 0x)  values.
              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.  If green and blue are not specified, the red  value  will
              be  used  for  all three components.  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
              xrandr --addmode VGA 1024x768
              xrandr --output VGA --mode 1024x768

       Enables  panning  on a 1600x768 desktop while displaying 1024x768 mode on an output called
              xrandr --fb 1600x768 --output VGA --mode 1024x768 --panning 1600x0

       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 1.24,0.16,-124,0,1.24,0,0,0.000316,1


       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.