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xgamma(1)										xgamma(1)

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

SYNOPSIS
       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 correction 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       Note that the xgamma utility is obsolete and deficient, xrandr should be used with drivers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 current gamma correction of the display.

OPTIONS
       -display display
	       This argument allows you to specify the server to connect to; see X(7).

       -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 single value,  or  separately  for
	       the  red,  green and blue components. This argument specifies the gamma correction
	       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.

ENVIRONMENT
       DISPLAY To get default host and display number.

BUGS
       This client changes the internal values of the gamma correction 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

X Version 11				   xgamma 1.0.5 				xgamma(1)
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