xvidtune(1)						      General Commands Manual						       xvidtune(1)

NAME

       xvidtune - video mode tuner for Xorg

SYNOPSIS

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

DESCRIPTION

       Xvidtune is a client interface to the X server video mode extension (XFree86-VidModeExtension).

       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 format 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
       type.

       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:

       Left
       Right
       Up
       Down
		 Adjust the video mode so that the display will be moved in the appropriate direction.

       Wider
       Narrower
       Shorter
       Taller
		 Adjust the video mode so that the display size is altered appropriately.

       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 immediately.  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:

       InvertVCLK
		 Change the VCLK invert/non-invert state.

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

       BlankDelay1
       BlankDelay2
		 Set  the  blank  delay  values.  This affects screen wrapping.  Acceptable values are in the range 0-7.  The values may be incre-
		 mented 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

OPTIONS

       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.

SEE ALSO

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

AUTHORS

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

BUGS

       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)