xvidtune man page on Scientific

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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 1.0.2			   xvidtune(1)

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