CVT(1) General Commands Manual CVT(1)

# [NAME](#NAME)

cvt - calculate VESA CVT mode lines

# [SYNOPSIS](#SYNOPSIS)

**cvt** \[**-v**|**--verbose**] \[**-r**|**--reduced**] *h-resolution* *v-resolution* \[**refresh**]

# [DESCRIPTION](#DESCRIPTION)

*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)**](/man/os/libxcvt/xorg.conf.5)

# [OPTIONS](#OPTIONS)

[**refresh**](#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**](#v)

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

[**-r**|**--reduced**](#r)

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.

# [SEE ALSO](#SEE_ALSO)

[xorg.conf(5)](/man/os/libxcvt/xorg.conf.5), [gtf(1)](/man/os/libxcvt/gtf.1)

# [AUTHOR](#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.

libxcvt 0.1.3 X Version 11

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Document: cvt(1) from libxcvt 0.1.3-r9 (Chainguard OS)
Source: https://gitlab.freedesktop.org/xorg/lib/libxcvt