| 1 | .TH GTF 1 __vendorversion__ |
| 2 | .SH NAME |
| 3 | gtf - calculate VESA GTF mode lines |
| 4 | .SH SYNOPSIS |
| 5 | .B gtf |
| 6 | .I h-resolution |
| 7 | .I v-resolution |
| 8 | .I refresh |
| 9 | .RB [ \-v | \-\-verbose ] |
| 10 | .RB [ \-f | \-\-fbmode ] |
| 11 | .RB [ \-x | \-\-xorgmode ] |
| 12 | .SH DESCRIPTION |
| 13 | .I Gtf |
| 14 | is a utility for calculating VESA GTF modes. Given the desired |
| 15 | horizontal and vertical resolutions and refresh rate (in Hz), the parameters |
| 16 | for a matching VESA GTF mode are printed out. Two output formats are |
| 17 | supported: mode lines suitable for the Xorg |
| 18 | .B xorg.conf(__filemansuffix__) |
| 19 | file, and mode parameters suitable for the Linux |
| 20 | .B fbset(8) |
| 21 | utility. |
| 22 | |
| 23 | .SH OPTIONS |
| 24 | .TP 8 |
| 25 | .BR \-v | \-\-verbose |
| 26 | Enable verbose printouts This shows a trace for each step of the |
| 27 | computation. |
| 28 | .TP 8 |
| 29 | .BR \-x | \-\-xorgmode |
| 30 | Print the mode parameters as Xorg-style mode lines. This is the |
| 31 | default format. |
| 32 | .TP 8 |
| 33 | .BR \-f | \-\-fbset |
| 34 | Print the mode parameters in a format suitable for |
| 35 | .BR fbset(8) . |
| 36 | .SH "SEE ALSO" |
| 37 | xorg.conf(__filemansuffix__), cvt(__appmansuffix__) |
| 38 | .SH AUTHOR |
| 39 | Andy Ritger. |
| 40 | .PP |
| 41 | This program is based on the Generalized Timing Formula (GTF(TM)) Standard |
| 42 | Version: 1.0, Revision: 1.0. The GTF Excel(TM) spreadsheet, a sample |
| 43 | (and the definitive) implementation of the GTF Timing Standard is |
| 44 | available at <ftp://ftp.vesa.org/pub/GTF/VTF_V1R1.xls>. |