Provided by: xserver-xorg-core_21.1.16-1ubuntu1.1_amd64 
      
    
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), cvt(1)
AUTHOR
       Andy Ritger.
       This program is based on the Generalized Timing Formula (GTF(TM)) Standard 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                                   xorg-server 21.1.16                                        GTF(1)