Provided by: x11-xserver-utils_7.7+7_i386 bug


       xset - user preference utility for X


       xset [-display display]
       [-b] [b {on|off}] [b [volume [pitch [duration]]]]
       [-bc] [bc]
       [-c] [c {on|off}] [c [volume]]
       [+dpms] [-dpms]
            [dpms    standby    [    suspend   [   off]]]        [dpms   force
       [fp=pathlist] [-fp=pathlist] [+fp=pathlist] [fp-pathlist] [fp+pathlist]
       [fp default] [fp rehash]
       [-led [integer|named indicator]] [led [integer|named indicator]]
       [led {on|off}]
       [mouse [accel_mult[/accel_div] [threshold]]] [mouse default]
       [p pixel color]
       [-r [keycode]]  [r [keycode]] [r {on|off}] [r rate delay [rate]]
       [s [length [period]]]  [s  {blank|noblank}]  [s  {expose|noexpose}]  [s
       {on|off}] [s default] [s activate] [s reset]


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


       -display display
               This option specifies the server to use; see X(7).

       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
               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

       -dpms   The -dpms option disables DPMS (Energy Star) features.

       +dpms   The +dpms option enables DPMS (Energy Star) features.

       dpms flags...
               The  dpms option allows the DPMS (Energy Star) parameters to be
               set.  The option can take up to three numerical values, or  the
               `force'  flag  followed  by  a  DPMS  state.  The `force' flags
               forces the server to  immediately  switch  to  the  DPMS  state
               specified.   The DPMS state can be one of `standby', `suspend',
               `off', or `on'.  When numerical values are given, they set  the
               inactivity  period (in units of seconds) before the three modes
               are activated.  The first value  given  is  for  the  `standby'
               mode,  the  second  is for the `suspend' mode, and the third is
               for the `off' mode.  Setting these  values  implicitly  enables
               the DPMS features.  A value of zero disables a particular mode.

       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

       +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-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.  ``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.  If the X server
               supports  the XKEYBOARD (XKB) extension, leds may be referenced
               by the XKB indicator name by specifying the `named' keyword and
               the  indicator  name.   For example, to turn on the Scroll Lock

               xset led named "Scroll Lock"

       mouse   The  m  option  controls  the  mouse  parameters;  it  may   be
               abbreviated  to  'm'.  Of  course,  it applies to most pointing
               devices, not just mice. The parameters for the pointing  device
               are  `acceleration'  and  `threshold'.  The acceleration can be
               specified as an integer, or as a simple fraction. Threshold  is
               just  an  integer.  The  setting  is  applied  to all connected
               pointing devices. xinput(1) should be used if you need  device-
               specific settings.

       By  default  the  pointer (the on-screen representation of the pointing
       device) will go `acceleration' times as fast when  the  device  travels
       more  than  `threshold'  mickeys  (i.e.  would-be  pixels)  in  10  ms,
       including a small transition range. This way, the pointing  device  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.

       If  the  `threshold'  parameter  is  provided and 0, the `acceleration'
       parameter will be used in the exponent of a more natural and continuous
       formula,  giving precise control for slow motion but big reach for fast
       motion,  and  a  progressive  transition  for   motions   in   between.
       Recommended  `acceleration'  value  in  this  case is 3/2 to 3, but not
       limited to that range.

       In the X Server 1.6 and above, the behaviour described so far  is
       linked to the default profile. There are other profiles (i.e. functions
       determining pointer acceleration from device velocity)  and  additional
       settings,  so the above description may not apply to non-default cases.
       In the Server 1.7, these are available as input device properties
       (see xinput).

       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.  Invoking with  "-r",  or
               "r off",  will  disable autorepeat, whereas "r", or "r on" will
               enable autorepeat.  Following the "-r" or "r"  option  with  an
               integer  keycode  between  0  and  255  will  disable or enable
               autorepeat on that key respectively, but only if it makes sense
               for the particular keycode.  Keycodes below 8 are not typically
               valid for this command.   Example:  "xset -r 10"  will  disable
               autorepeat  for  the  "1"  key  on  the  top  row  of an IBM PC

               If the server supports the XFree86-Misc extension, or  the  XKB
               extension, then a parameter of 'rate' is accepted and should be
               followed  by  zero,  one  or  two  numeric  values.  The  first
               specifies  the  delay  before  autorepeat starts and the second
               specifies the  repeat  rate.   In  the  case  that  the  server
               supports  the  XKB  extension,  the  delay  is  the  number  of
               milliseconds before autorepeat starts,  and  the  rate  is  the
               number  of  repeats  per  second.   If the rate or delay is not
               given, it will be set to the default value.

       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.

               The -version  option  prints  the  program  version  and  exits
               without doing anything else.

       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.


       X(7), Xserver(1), xmodmap(1), xrdb(1), xsetroot(1), xinput(1)


       Bob Scheifler, MIT Laboratory for Computer Science
       David Krikorian, MIT Project Athena (X11 version)
       XFree86-Misc support added by David Dawes and Joe Moss
       Manpage updates added by Mike A. Harris <>