cvt(1)

cvt1

Calculate vesa cvt mode lines

Usage

cvt [{-v | --verbose}] [{-r | --reduced}] h-resolution v-resolution [refresh]

Overview

Cvt is a utility for calculating VESA Coordinated Video Timing modes. Given the desired horizontal and vertical resolutions, a modeline adhering to the CVT standard is printed. This modeline can be included in Xorg xorg.conf(5)

Options

refresh

Provide a vertical refresh rate in Hz. The CVT standard prefers either 50.0, 60.0, 75.0 or 85.0Hz. The default is 60.0Hz.

-v|--verbose

Warn verbosely when a given mode does not completely correspond with CVT standards.

-r|--reduced

Create a mode with reduced blanking. This allows for higher frequency signals, with a lower or equal dotclock. Not for Cathode Ray Tube based displays though.

Releases

10 releases since Debian 5.0 (Lenny); the text changed 8 times.

  1. 5.0
  2. 6.0
  3. 7
  4. 8
  5. 9
  6. 10
  7. 11
  8. 12
  9. 13–Arch

Author

Luc Verhaegen.

This program is based on the Coordinated Video Timing sample implementation written by Graham Loveridge. This file is publicly available at <http://www.vesa.org/Public/CVT/CVTd6r1.xls>. CVT is a VESA trademark.

From libxcvt 0.1.3-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.