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xgamma(1)		    General Commands Manual		     xgamma(1)

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

SYNOPSIS
       xgamma  [-display display] [-screen screen] [-quiet] [-version] [-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 mon-
       itor 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       Note  that  the xgamma utility is obsolete and deficient, xrandr	should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 cor-
       rection 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 dis-
	       play, 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.

       -version
	       Print out the program version and exit.

       -gamma f.f
	       The  gamma  correction can either be defined as a single	value,
	       or separately for the red, green	and blue components. This  ar-
	       gument specifies	the gamma correction as	a single value.

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

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

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

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 ac-
       curacy.

SEE ALSO
       xvidtune(1), xrandr(1)

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

X Version 11			 xgamma	1.0.6			     xgamma(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | BUGS | SEE ALSO | AUTHORS

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