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Kmscon

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Title: Kmscon  
Author: World Heritage Encyclopedia
Language: English
Subject: Linux console, Freedesktop.org, Guake, Linux kernel, Systemd
Collection: Free System Software, Freedesktop.Org, Linux Kernel-Related Software, Technical Communication Tools, Terminal Emulators, Wayland
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Kmscon

kmscon
Developer(s) David Herrmann
Initial release March 27, 2012 (2012-03-27)[1]
Stable release 8 / October 29, 2013 (2013-10-29)
Preview release 8 / October 29, 2013 (2013-10-29)
Development status Active
Written in C
Operating system Linux
Type System console
License ISC license
Website /kmscon/Software/wiki.org.freedesktopwww

Kmscon is a virtual console which runs in userspace and intends to replace the Linux console, a terminal built into the Linux kernel. Kmscon uses the KMS driver for its output, it is multi-seat capable, supports internationalized keyboard input and UTF-8 terminal output. The input support is implemented using X keyboard extension (XKB).

Contents

  • Features 1
  • Development 2
  • See also 3
  • References 4

Features

Kmscon supports printing the full set of Unicode glyphs and is not limited by console encoding as the Linux console.[2] While the only hard dependency is udev, kmscon can optionally be compiled to use Mesa for hardware acceleration of the console, and the pango library for improved font rendering.[3]

The adoption of Wayland compositors for input and makes it possible to use the same layout both in graphical environment and in terminal.[4]

Development

In 2011, Jesse Barnes wrote in his blog about the possible userspace DRM-based implementation of the virtual terminal, that would dissolve the need for the Linux framebuffer and virtual terminal (VT) subsystems in the Linux kernel. Motivated by this blog post, David Herrmann implemented the basic functionality of virtual terminal.[2]

In October 2013 terminal-emulator state machine (libtsm) library, a state machine for DEC VT100-VT520 compatible terminal emulators, was split out of kmscon and made available separately.[5] It was amended with wlterm, an example Wayland terminal emulator.[6]

See also

References

  1. ^ Herrmann, David (March 27, 2012), "[ANNOUNCE] kmscon: Lazy-web's DRM based terminal emulator", dri-devel mailing list ( 
  2. ^ a b Larabel, Michael (March 28, 2012), "KMSCON: A DRM-Based Terminal Emulator",  
  3. ^ Larabel, Michael (August 18, 2012), "KMSCON Is Getting Ready To Kick The Kernel Console",  
  4. ^ Herrmann, David (December 10, 2012), KMSCON Introduction, retrieved May 8, 2013 
  5. ^ Herrmann, David (October 29, 2013), "[ANNOUNCE] libtsm-3 release", kmscon-devel mailing list ( 
  6. ^ libtsm,  
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