the default (96 DPI), the DPI of the only monitor in single‐moni‐
              tor  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 specified  us‐
              ing  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 com‐
              pute 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 out‐
              put 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 ap‐
              plied 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 out‐
              puts 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).