ben@i7:~$ nvidia-settings -h

nvidia-settings:  version 390.42  (buildd@lcy01-amd64-029)  Thu Mar 22 17:34:03
UTC 2018
  The NVIDIA X Server Settings tool.

  This program is used to configure the NVIDIA Linux graphics driver.
  For more detail, please see the nvidia-settings(1) man page.


nvidia-settings [options]

  -v, --version
      Print the nvidia-settings version and exit.

  -h, --help
      Print usage information and exit.

  --config=CONFIG
      Use the configuration file CONFIG rather than the default ~/.nvidia-setti
      ngs-rc

  -c CTRL-DISPLAY, --ctrl-display=CTRL-DISPLAY
      Control the specified X display.  If this option is not given, then nvidi
      a-settings will control the display specified by '--display'; if that is
      not given, then the $DISPLAY environment variable is used.

  -l, --load-config-only
      Load the configuration file, send the values specified therein to the X s
      erver, and exit.  This mode of operation is useful to place in your xinit
      rc file, for example.

  -n, --no-config
      Do not load the configuration file.  This mode of operation is useful if
      nvidia-settings has difficulties starting due to problems with applying s
      ettings in the configuration file.

  -r, --rewrite-config-file
      Write the X server configuration to the configuration file, and exit, wit
      hout starting the graphical user interface.  See EXAMPLES section.

  -V VERBOSE, --verbose=VERBOSE
      Controls how much information is printed.  Valid values are 'none' (do no
      t print status messages), 'errors' (print error messages), 'deprecations'
      (print error and deprecation messages), 'warnings' (print error, deprecat
      ion, and warning messages), and 'all' (print error, deprecation, warning
      and other informational messages).  By default, 'deprecations' is set.

  -a ASSIGN, --assign=ASSIGN
      The ASSIGN argument to the '--assign' command line option is of the form:

        {DISPLAY}/{attribute name}[{display devices}]={value}

      This assigns the attribute {attribute name} to the value {value} on the X
      Display {DISPLAY}.  {DISPLAY} follows the usual {host}:{display}.{screen}
      syntax of the DISPLAY environment variable and is optional; when it is no
      t specified, then it is implied following the same rule as the --ctrl-dis
      play option.  If the X screen is not specified, then the assignment is ma
      de to all X screens.  Note that the '/' is only required when {DISPLAY} i
      s present.

      {DISPLAY} can additionally include a target specification to direct an as
      signment to something other than an X screen.  A target specification is
      contained within brackets and consists of a target type name, a colon, an
      d the target id.  The target type name can be one of "screen", "gpu", "fr
      amelock", "vcs", "gvi", "fan", "thermalsensor", "svp", or "dpy"; the targ
      et id is the index into the list of targets (for that target type).  The
      target specification can be used in {DISPLAY} wherever an X screen can be
      used, following the syntax {host}:{display}[{target_type}:{target_id}].
      See the output of

        nvidia-settings -q all

      for information on which target types can be used with which attributes.
      See the output of

         nvidia-settings -q screens -q gpus -q framelocks -q vcs -q gvis -q fan
      s -q thermalsensors -q svps -q dpys

      for lists of targets for each target type.

      The [{display devices}] portion is also optional; if it is not specified,
      then the attribute is assigned to all display devices.

      Some examples:

        -a FSAA=5
        -a localhost:0.0/DigitalVibrance[CRT-0]=0
        --assign="SyncToVBlank=1"
        -a [gpu:0]/DigitalVibrance[DFP-1]=63

  -q QUERY, --query=QUERY
      The QUERY argument to the '--query' command line option is of the form:

        {DISPLAY}/{attribute name}[{display devices}]

      This queries the current value of the attribute {attribute name} on the X
      Display {DISPLAY}.  The syntax is the same as that for the '--assign' opt
      ion, without '={value}'; specify '-q screens', '-q gpus', '-q framelocks'
      , '-q vcs', '-q gvis', '-q fans', '-q thermalsensors', '-q svps', or '-q
      dpys' to query a list of X screens, GPUs, Frame Lock devices, Visual Comp
      uting Systems, SDI Input Devices, Fans, Thermal Sensors, 3D Vision Pro Tr
      ansceivers, or Display Devices, respectively, that are present on the X D
      isplay {DISPLAY}.  Specify '-q all' to query all attributes.

  -t, --terse
      When querying attribute values with the '--query' command line option, on
      ly print the current value, rather than the more verbose description of t
      he attribute, its valid values, and its current value.

  -d, --display-device-string
      When printing attribute values in response to the '--query' option, if th
      e attribute value is a display device mask, print the value as a list of
      display devices (e.g., "CRT-0, DFP-0"), rather than a hexadecimal bit mas
      k (e.g., 0x00010001).

  -g, --glxinfo
      Print GLX Information for the X display and exit.

  -e DESCRIBE, --describe=DESCRIBE
      Prints information about a particular attribute.  Specify 'all' to list t
      he descriptions of all attributes.  Specify 'list' to list the attribute
      names without a descriptions.

  -p PAGE, --page=PAGE
      The PAGE argument to the '--page' commandline option selects a particular
      page in the nvidia-settings user interface to display upon starting nvidi
      a-settings.  Valid values are the page names in the tree view on the left
      side of the nvidia-settings user interface; e.g.,

        --page="X Screen 0"

      Because some page names are not unique (e.g., a "PowerMizer" page is pres
      ent under each GPU), the page name can optionally be prepended with the n
      ame of the parent X Screen or GPU page, followed by a comma.  E.g.,

        --page="GPU 0 - (Quadro 6000), PowerMizer"

      The first page with a name matching the PAGE argument will be used.  By d
      efault, the "X Server Information" page is displayed.

  -L, --list-targets-only
      When performing an attribute query (from the '--query' command line optio
      n) or an attribute assignment (from the '--assign' command line option or
      when loading an ~/.nvidia-settings-rc file), nvidia-settings identifies o
      ne or more targets on which to query/assign the attribute.

      The '--list-targets-only' option will cause nvidia-settings to list the t
      argets on which the query/assign operation would have been performed, wit
      hout actually performing the operation(s), and exit.

  -w, --write-config, --no-write-config
      Save the configuration file on exit (enabled by default).

  -i, --use-gtk2
      Force nvidia-settings to use the GTK+ 2 library for the graphical user in
      terface if a user interface is required. This option is only available on
      systems where nvidia-settings supports both the GTK+ 2 and GTK+ 3 user in
      terfaces.

  -I GTK-LIBRARY, --gtk-library=GTK-LIBRARY
      Specify the graphical user interface library to use if a nvidia-settings
      user interface is required. This value may be the exact location of the l
      ibrary or it may be the directory containing the appropriately named libr
      ary. If this is the exact location, the 'use-gtk2' option is ignored.