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xvidtune(1)							   xvidtune(1)

       xvidtune	- video	mode tuner for Xorg

       xvidtune	[ -show	| -prev	| -next	| -unlock ] [ -toolkitoption ... ]

       Xvidtune	 is  a	client	interface to the X server video	mode extension

       When given one of the non-toolkit options, xvidtune provides a  command
       line interface to either	print or switch	the video mode.

       Without any options (or with only toolkit options) it presents the user
       with various buttons and	sliders	that  can  be  used  to	 interactively
       adjust existing video modes.  It	will also print	the settings in	a for-
       mat suitable for	inclusion in an	xorg.conf file.

       Normally	the Xorg X servers only	allow changes  to  be  made  with  the
       XFree86-VidModeExtension	 from clients connected	via a local connection

       Note:  The original mode	settings can be	restored by pressing  the  `R'
       key,  and  this	can  be	 used to restore a stable screen in situations
       where the screen	becomes	unreadable.

       The available buttons are:

		 Adjust	the video mode so that the display will	 be  moved  in
		 the appropriate direction.

		 Adjust	 the  video  mode  so that the display size is altered

       Quit	 Exit the program.

       Apply	 Adjust	the current video mode to match	the selected settings.

       Auto	 Cause	the Up/Down/Right/Left,	Wider/Narrower/Shorter/Taller,
		 Restore, and the special S3 buttons  to  be  applied  immedi-
		 ately.	 This button can be toggled.

       Test	 Temporarily switch to the selected settings.

       Restore	 Return	the settings to	their original values.

       Fetch	 Query the server for its current settings.

       Show	 Print	the currently selected settings	to stdout in xorg.conf
		 "Modeline" format.  The primary selection is similarly	set.

       Next	 Switch	the Xserver to the next	video mode.

       Prev	 Switch	the Xserver to the previous video mode.

       For some	S3-based cards (964 and	968) the following are also available:

		 Change	the VCLK invert/non-invert state.

       EarlySC	 Change	the Early SC state.  This affects screen wrapping.

		 Set  the  blank  delay	values.	 This affects screen wrapping.
		 Acceptable values are in the range 0-7.  The  values  may  be
		 incremented  or  decremented with the `+' and `-' buttons, or
		 by pressing the `+' or	`-' keys in the	text field.

       For S3-864/868 based cards InvertVCLK and BlankDelay1  may  be  useful.
       For S3 Trio32/Trio64 cards only InvertVCLK is available.	 At the	moment
       there are no default settings available for these chips	in  the	 video
       mode  extension	and thus this feature is disabled in xvidtune.	It can
       be enabled by setting any of the	optional S3  commands  in  the	screen
       section of xorg.conf, e.g. using
		 blank_delay "*" 0

       xvidtune	accepts	the standard X Toolkit command line options as well as
       the following:

       -show	 Print the current settings to stdout in xorg.conf  "Modeline"
		 format	and exit.

       -prev	 Switch	the Xserver to the previous video mode.

       -next	 Switch	the Xserver to the next	video mode.

       -unlock	 Normally,  xvidtune will disable the switching	of video modes
		 via hot-keys while it is running.  If	for  some  reason  the
		 program did not exit cleanly and they are still disabled, the
		 program can be	re-run with this option	to re-enable the  mode
		 switching key combinations.

       xrandr(1), Xorg(1), xorg.conf(5).

       Kaleb S.	Keithley, X Consortium.
       Additions and modifications by Jon Tombs, David Dawes, and Joe Moss.

       X  Error	handling, i.e. when the	server does not	allow xvidtune clients
       to write	new modes, could be better.

X Version 11			xvidtune 1.0.3			   xvidtune(1)


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