con2fbmap
Show or set console-to-framebuffer mappings
TLDR
SYNOPSIS
con2fbmap console [framebuffer]
DESCRIPTION
con2fbmap shows or sets the mapping between Linux virtual consoles and framebuffer devices. Framebuffer devices provide a unified interface for accessing graphics displays and are accessed through device nodes /dev/fb\<n\>, where n is the device number.When called with only a console number, it displays the current framebuffer mapping for that console. When called with both a console number and a framebuffer number, it reassigns the console to use the specified framebuffer device.This is useful on systems with multiple graphics adapters or displays, allowing different virtual consoles to render on different screens.
PARAMETERS
console
The virtual console number to query or modify (required).framebuffer
The framebuffer device number to map the console to. If omitted, the current mapping is displayed.
CAVEATS
Requires root privileges to change mappings. Only works on systems using the Linux framebuffer subsystem. On modern systems using KMS/DRM, framebuffer devices may be provided through the vesafb, simplefb, or DRM framebuffer emulation layers.
HISTORY
con2fbmap is part of the fbset package, a collection of framebuffer utilities for Linux. The framebuffer subsystem was introduced in Linux 2.1.107 in 1998, originally ported from the Amiga and Atari Linux kernels. The fbset package was maintained by Geert Uytterhoeven as part of the early Linux framebuffer infrastructure.
