xgamma (1)

Name

xgamma - Alter a monitor's gamma correction through the X server

Synopsis

/usr/bin/xgamma [-display display] [-screen screen] [-quiet]
[-gamma f.f | [[-rgamma f.f] [-ggamma f.f] [-bgamma f.f]]]

Description

User Commands                                           xgamma(1)



NAME
     xgamma  -  Alter  a monitor's gamma correction through the X
     server

SYNOPSIS
     /usr/bin/xgamma [-display display] [-screen screen] [-quiet]
     [-gamma f.f | [[-rgamma f.f] [-ggamma f.f] [-bgamma f.f]]]

DESCRIPTION
     xgamma  allows  X users to query and alter the gamma correc-
     tion  of  a  monitor  via  the  X   video   mode   extension
     (XFree86-VidModeExtension).

     Note  that  the  xgamma  utility  is obsolete and deficient,
     xrandr should be used with drivers that support  the  XRandr
     extension.

     If no value for the gamma correction is given via the -gamma
     or -rgamma/-ggamma/-bgamma options, xgamma prints  the  cur-
     rent gamma correction of the display.

OPTIONS
     -display display
             This  argument  allows  you to specify the server to
             connect to; see X(5).

     -screen screen
             When multiple displays are configured  as  a  single
             logical  display,  this  option allows you to select
             the screen you wish to change.

     -quiet  Silence the normal output of xgamma

     -help   Print out the `Usage:' command syntax summary.

     -gamma f.f
             The gamma correction can either be defined as a sin-
             gle value, or separately for the red, green and blue
             components. This argument specifies the  gamma  cor-
             rection as a single value.

     -rgamma f.f
             This  argument  specifies  the  red component of the
             gamma correction.

     -ggamma f.f
             This argument specifies the green component  of  the
             gamma correction.

     -bgamma f.f
             This  argument  specifies  the blue component of the
             gamma correction.



X Version 11        Last change: xgamma 1.0.5                   1






User Commands                                           xgamma(1)



ENVIRONMENT
     DISPLAY To get default host and display number.

BUGS
     This client changes the internal values of the gamma correc-
     tion  for  the  Xserver.  Whether  or  not  these values are
     respected depends on the video drivers.

     The gamma values are passed to the Xserver  with  3  decimal
     places of accuracy.

SEE ALSO
     xvidtune(1), xrandr(1)

AUTHORS
     Kaleb S. Keithley, X Consortium.
     David Dawes, David Bateman


ATTRIBUTES
     See   attributes(5)   for   descriptions  of  the  following
     attributes:

     +-----------------------------+-----------------------------+
     |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
     +-----------------------------+-----------------------------+
     |Availability                 |x11/x11-server-utilities     |
     +-----------------------------+-----------------------------+
     |Interface Stability          |Volatile                     |
     +-----------------------------+-----------------------------+

























X Version 11        Last change: xgamma 1.0.5                   2