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XRANDR(1)		    General Commands Manual		     XRANDR(1)

NAME
       xrandr -	primitive command line interface to RandR extension

SYNOPSIS
       xrandr  [--help]	  [--display display] [-q] [-v]	[--verbose] [--dryrun]
       [--screen snum] [--q1]  [--q12]	[--current]  [--noprimary]  [--panning
       widthxheight[+x+y[/track_widthxtrack_height+track_x+track_y[/bor-
       der_left/border_top/border_right/border_bottom]]]]   [--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-out-
       put]  [--newmode	 name  mode]  [--rmmode	 name] [--addmode output name]
       [--delmode  output  name]  [--output  output]  [--auto]	[--mode	 mode]
       [--preferred]  [--pos  xxy] [--rate rate] [--reflect reflection]	[--ro-
       tate orientation] [--left-of output] [--right-of	output]	[--above  out-
       put] [--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] [--set-
       provideroutputsource   provider	  source]    [--setprovideroffloadsink
       provider	 sink]	[--listmonitors]  [--listactivemonitors] [--setmonitor
       name geometry outputs] [--delmonitor name]

DESCRIPTION
       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  pre-
       ferred modes 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.

       --verbose
	      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 informa-
	      tions  are  only	approximations	of  the	complete color profile
	      stored in	the server. When used along with options  that	recon-
	      figure 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 sys-
	      tem.

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

       --nograb
	      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	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
	      available.

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

       --listmonitors
	      Report information about all defined monitors.

       --listactivemonitors
	      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	speci-
	      fication	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.

       --listproviders
	      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.

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

       --noprimary
	      Don't define a primary output.

       Per-output options

       --panning			      widthxheight[+x+y[/track_widthx-
       track_height+track_x+track_y[/border_left/border_top/border_right/bor-
       der_bottom]]]
	      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 ac-
	      cording 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 bi-
	      linear filter is selected	automatically unless the --filter  pa-
	      rameter  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  ma-
	      trix  multiplied by the coordinate vector	of a pixel of the out-
	      put 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  coordi-
	      nate and multiplied against the matrix. The final	device coordi-
	      nates of the pixel are then calculated with  the	so-called  ho-
	      mogenic  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	'near-
	      est'.

       --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 big-
	      ger 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.

       --primary
	      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 pro-
	      vided, 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 config-
	      urations	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 ref-
	      erence 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 configurations.

       --newmode name mode
	      New  modelines  can  be  added to	the server and then associated
	      with outputs.  This option does the former. The mode  is	speci-
	      fied using the ModeLine syntax for xorg.conf: clock hdisp	hsync-
	      start hsyncend htotal vdisp vsyncstart  vsyncend	vtotal	flags.
	      flags can	be zero	or more	of +HSync, -HSync, +VSync, -VSync, In-
	      terlace, 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

       --preferred
	      This selects the same mode as --auto, but	it  doesn't  automati-
	      cally 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 rel-
	      ative 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 hexadec-
	      imal  (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	 over-
	      ride 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 com-
	      ponents.	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 modifica-
	      tion, 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  in-
       teract 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.

EXAMPLES
       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 phys-
       ically 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
	      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  cor-
       rected 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

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

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

X Version 11			 xrandr	1.5.1			     XRANDR(1)

NAME | SYNOPSIS | DESCRIPTION | RandR version 1.5 options | RandR version 1.4 options | RandR version 1.3 options | RandR version 1.2 options | RandR version 1.1 options | EXAMPLES | SEE ALSO | AUTHORS

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