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 XSET(1)			X Version 11			     XSET(1)
				 Release 6.3



 NAME
      xset - user preference utility for X

 SYNOPSIS
      xset [-display display] [-b] [b on/off] [b [volume [pitch [duration]]]
      [[-]bc] [-c] [c on/off] [c [volume]] [-dpms] [dpms on/off] [dpms
      default] [dpms StandbyTime SuspendTime OffTime] [[-+]fp[-+=]
      path[,path[,...]]] [fp default] [fp rehash] [[-]led [integer]] [led
      on/off] [m[ouse] [accel_mult[/accel_div] [threshold]]] [m[ouse]
      default] [p pixel color] [[-]r [keycode]] [r on/off] [s [length
      [period]]] [s blank/noblank] [s expose/noexpose] [s on/off] [s default]
      [s activate] [s reset] [q]

 DESCRIPTION
      This program is used to set various user preference options of the
      display.

 OPTIONS
      -display display
	      This option specifies the server to use; see X(1).

      b	      The b option controls bell volume, pitch and duration.  This
	      option accepts up to three numerical parameters, a preceding
	      dash(-), or a 'on/off' flag.  If no parameters are given, or
	      the 'on' flag is used, the system defaults will be used.	If
	      the dash or 'off' are given, the bell will be turned off.	 If
	      only one numerical parameter is given, the bell volume will be
	      set to that value, as a percentage of its maximum.  Likewise,
	      the second numerical parameter specifies the bell pitch, in
	      hertz, and the third numerical parameter specifies the
	      duration in milliseconds.	 Note that not all hardware can vary
	      the bell characteristics.	 The X server will set the
	      characteristics of the bell as closely as it can to the user's
	      specifications.

      bc      The bc option controls bug compatibility mode in the server,
	      if possible; a preceding dash(-) disables the mode, otherwise
	      the mode is enabled.  Various pre-R4 clients pass illegal
	      values in some protocol requests, and pre-R4 servers did not
	      correctly generate errors in these cases.	 Such clients, when
	      run against an R4 server, will terminate abnormally or
	      otherwise fail to operate correctly.  Bug compatibility mode
	      explicitly reintroduces certain bugs into the X server, so
	      that many such clients can still be run.	This mode should be
	      used with care; new application development should be done
	      with this mode disabled.	The server must support the MIT-
	      SUNDRY-NONSTANDARD protocol extension in order for this option
	      to work.

      c	      The c option controls key click.	This option can take an
	      optional value, a preceding dash(-), or an 'on/off' flag.	 If



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 XSET(1)			X Version 11			     XSET(1)
				 Release 6.3



	      no parameter or the 'on' flag is given, the system defaults
	      will be used. If the dash or 'off' flag is used, keyclick will
	      be disabled.  If a value from 0 to 100 is given, it is used to
	      indicate volume, as a percentage of the maximum.	The X server
	      will set the volume to the nearest value that the hardware can
	      support.

      -dpms or dpms
	      The dpms option provides control over the VESA Display Power
	      Management Signalling (DPMS) characteristics of video boards
	      under control of the X Window System; see DPMS(3) and X(1).
	      The '-dpms' and 'dpms off' options turn off the DPMS
	      functionality while 'dpms on' enables it.	 The 'dpms default'
	      option both enables dpms and resets the time-out values to the
	      system default.  The 'dpms' option followed by three integers
	      will enable DPMS and set the Standby, Suspend and Off time-
	      outs to the specified values.  The units for these time-out
	      values are in seconds.  These values represent the total
	      amount of idle time (as measured in keystrokes and mouse
	      movements) which must transpire before that particular mode is
	      activated.  Specifying a value of zero will disable a
	      particular mode.	For a full description of the behavior of
	      the various time-outs as well as a list of which graphics
	      devices support DPMS see the Graphics Administration Guide,
	      also found on-line at '/usr/lib/X11/Xserver/info/screens/hp'.

      fp= path,...
	      The fp= sets the font path to the entries given in the path
	      argument.	 The entries are interpreted by the server, not by
	      the client.  Typically they are directory names or font server
	      names, but the interpretation is server-dependent.

      fp default
	      The default argument causes the font path to be reset to the
	      server's default.

      fp rehash
	      The rehash argument resets the font path to its current value,
	      causing the server to reread the font databases in the current
	      font path.  This is generally only used when adding new fonts
	      to a font directory (after running mkfontdir to recreate the
	      font database).

      -fp or fp-
	      The -fp and fp- options remove elements from the current font
	      path.  They must be followed by a comma-separated list of
	      entries.

      +fp or fp+
	      This +fp and fp+ options prepend and append elements to the
	      current font path, respectively.	They must be followed by a



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 XSET(1)			X Version 11			     XSET(1)
				 Release 6.3



	      comma-separated list of entries.

      led     The led option controls the keyboard LEDs.  This controls the
	      turning on or off of one or all of the LEDs.  It accepts an
	      optional integer, a preceding dash(-) or an 'on/off' flag.  If
	      no parameter or the 'on' flag is given, all LEDs are turned
	      on.  If a preceding dash or the flag 'off' is given, all LEDs
	      are turned off.  If a value between 1 and 32 is given, that
	      LED will be turned on or off depending on the existence of a
	      preceding dash.  A common LED which can be controlled is the
	      ``Caps Lock'' LED.  ``xset led 3'' would turn led #3 on.
	      ``xset -led 3'' would turn it off.  The particular LED values
	      may refer to different LEDs on different hardware.

      m	      The m option controls the mouse parameters.  The parameters
	      for the mouse are `acceleration' and `threshold'.	 The
	      acceleration can be specified as an integer, or as a simple
	      fraction.	 The mouse, or whatever pointer the machine is
	      connected to, will go `acceleration' times as fast when it
	      travels more than `threshold' pixels in a short time.  This
	      way, the mouse can be used for precise alignment when it is
	      moved slowly, yet it can be set to travel across the screen in
	      a flick of the wrist when desired.  One or both parameters for
	      the m option can be omitted, but if only one is given, it will
	      be interpreted as the acceleration.  If no parameters or the
	      flag 'default' is used, the system defaults will be set.

      p	      The p option controls pixel color values.	 The parameters are
	      the color map entry number in decimal, and a color
	      specification.  The root background colors may be changed on
	      some servers by altering the entries for BlackPixel and
	      WhitePixel.  Although these are often 0 and 1, they need not
	      be.  Also, a server may choose to allocate those colors
	      privately, in which case an error will be generated.  The map
	      entry must not be a read-only color, or an error will result.

      r	      The r option controls the autorepeat.  If a preceding dash or
	      the 'off' flag is used, autorepeat will be disabled.  If no
	      parameters or the 'on' flag is used, autorepeat will be
	      enabled.	If a specific keycode is specified as a parameter,
	      autorepeat for that keycode is enabled or disabled.

      s	      The s option lets you set the screen saver parameters.  This
	      option accepts up to two numerical parameters, a
	      'blank/noblank' flag, an 'expose/noexpose' flag, an 'on/off'
	      flag, an 'activate/reset' flag, or the 'default' flag.  If no
	      parameters or the 'default' flag is used, the system will be
	      set to its default screen saver characteristics.	The 'on/off'
	      flags simply turn the screen saver functions on or off.  The
	      'activate' flag forces activation of screen saver even if the
	      screen saver had been turned off.	 The 'reset' flag forces



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				 Release 6.3



	      deactivation of screen saver if it is active.  The 'blank'
	      flag sets the preference to blank the video (if the hardware
	      can do so) rather than display a background pattern, while
	      'noblank' sets the preference to display a pattern rather than
	      blank the video.	The 'expose' flag sets the preference to
	      allow window exposures (the server can freely discard window
	      contents), while 'noexpose' sets the preference to disable
	      screen saver unless the server can regenerate the screens
	      without causing exposure events.	The length and period
	      parameters for the screen saver function determines how long
	      the server must be inactive for screen saving to activate, and
	      the period to change the background pattern to avoid burn in.
	      The arguments are specified in seconds.  If only one numerical
	      parameter is given, it will be used for the length.

      q	      The q option gives you information on the current settings.

      These settings will be reset to default values when you log out.

      Note that not all X implementations are guaranteed to honor all of
      these options.

 SEE ALSO
      X(1), Xserver(1), xmodmap(1), xrdb(1), xsetroot(1)

 AUTHOR
      Bob Scheifler, MIT Laboratory for Computer Science
      David Krikorian, MIT Project Athena (X11 version)


























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