XSET(1) 						      General Commands Manual							   XSET(1)

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 cor-
	       rectly.	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 no  parame-
	       ter  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 key-
	       strokes and mouse movements) which must transpire before that particular mode is activated.  Specifying a value of zero	will  dis-
	       able  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  data-
	       base).

       -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 comma-sep-
	       arated 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 preced-
	       ing 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 hard-
	       ware.

       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 `acceler-
	       ation'  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 parame-
	       ters 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 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)

X Version 11							    Release 6.3 							   XSET(1)