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GTF(1)                                                                  GTF(1)




NAME

       gtf - calculate VESA GTF mode lines


SYNOPSIS

       gtf  h-resolution  v-resolution  refresh  [-v|--verbose]  [-f|--fbmode]
       [-x|--xorgmode]


DESCRIPTION

       Gtf is a utility for calculating VESA GTF  modes.   Given  the  desired
       horizontal  and  vertical  resolutions  and  refresh  rate (in Hz), the
       parameters for a matching VESA GTF mode are printed  out.   Two  output
       formats  are  supported:  mode lines suitable for the Xorg xorg.conf(5)
       file, and mode parameters suitable for the Linux fbset(8) utility.



OPTIONS

       -v|--verbose
               Enable verbose printouts  This shows a trace for each  step  of
               the computation.

       -x|--xorgmode
               Print  the  mode  parameters as Xorg-style mode lines.  This is
               the default format.

       -f|--fbset
               Print the mode parameters in a format suitable for fbset(8).


SEE ALSO

       xorg.conf(5)


AUTHOR

       Andy Ritger.

       This program is based on the Generalized Timing Formula (GTF(TM)) Stan-
       dard  Version:  1.0,  Revision:  1.0.  The GTF Excel(TM) spreadsheet, a
       sample (and the definitive) implementation of the GTF  Timing  Standard
       is available at <ftp://ftp.vesa.org/pub/GTF/VTF_V1R1.xls>.



                                 X Version 11                           GTF(1)