gtf Man page

GTF(1) General Commands Manual GTF(1)


gtf – calculate VESA GTF mode lines


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


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.


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

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

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


xorg.conf(5), cvt


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 .

X Version 11 xorg-server 1.18.4 GTF(1)