Table of Contents

## Name

gtf - calculate VESA GTF mode lines

## Synopsis

gtf h-resolution v-resolution refresh [-v|--verbose] [-f|--fbmode] [-x|--xf86mode]

## 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 XFree86 XF86Config(4) 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|--xf86mode
  Print the mode parameters as XFree86-style mode lines. This is the default format.
-f|--fbset
  Print the mode parameters in a format suitable for fbset(8) .

## See Also

XF86Config(4)

## Author

Andy Ritger.

This program is based on the Generalized Timing Formula (GTF(TM)) Standard Version: 1.0, Revsion: 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>.

Table of Contents

- Name
- Synopsis
- Description
- Options
- See Also
- Author