This option specifies the server to use; see X(5).
-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, key click will be
disabled. A value from 0 to 100 can be given 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.
fp=path,...
The fp= sets the font path to the directories given in
the path argument. The directories are interpreted by the server,
not by the client, and are server-dependent. Directories that do
not contain font databases created by mkfontdir(1) will be
ignored by the server.
fp default
The default argument causes the font path to be reset to
the server's default.
fp rehash
The rehash argument causes the server to reread the font
databases in the current font path. This is usually used only when
adding new fonts to a font directory (after running
mkfontdir(1) to recreate the font database).
-fp
fp-
The -fp and fp- options remove elements from the
current font path. They must be followed by a comma-separated list
of directories.
+fp or fp+
The +fp and fp+ options prepend and append
elements to the current font path, respectively. They must be
followed by a comma-separated list of directories.
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 that 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 computer 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, but can also be set
to travel across the screen in a flick of the wrist. 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 are used, 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 can 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
can 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 are used, or the 'on' flag is used, autorepeat will be
enabled.
s
You can use the s option to 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,
or the 'default' flag. If no parameters are used, 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 'blank' flag sets the preference to blank
the video (if the hardware can do so) rather than display a
background pattern; '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); 'noexpose' sets the preference to disable the
screen saver unless the server can regenerate the screens without
causing exposure events. The length and period parameters for the
screen saver function determine how long the server must be
inactive for screen saving to activate, and the period to change
the background pattern to prevent 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.