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.
-
-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).
xorg.conf(5),
cvt(1)
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>.