GTF(1)                      General Commands Manual                     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), 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 21.1.13                       GTF(1)