29 September 2025 to 1 October 2025
Europe/Vienna timezone

Userspace virtual terminal in 2025

1 Oct 2025, 17:40
5m
Lightning Talk (5 minutes) Lightning Talk Lightning Talks

Speaker

Jocelyn Falempe (Red Hat)

Description

In 2014, an initiative emerged to supplant the kernel's graphical console, fbcon, with a userspace alternative named Kmscon. Despite this effort, and fbcon's subsequent loss of scrolling support due to a CVE, most Linux distributions continue to default to fbcon in 2025.

This presentation will explore various alternatives designed to enhance the user experience beyond what fbcon currently offers. These include:

  • Kmscon: A minimalist userspace solution that remains actively maintained.
  • Userspacevt: A collection of scripts enabling the use of a Wayland compositor and a graphical terminal to replace fbcon. I have packaged several combinations for Fedora, such as Cage/Foot, Gnome-kiosk/Ptyxis, and Kwin/Konsole.
  • DRM Log: A kernel module leveraging the DRM infrastructure to display early kernel boot logs.
In-person or virtual presentation In-person
Code of Conduct Yes
GSoC, EVoC or Outreachy No

Primary author

Presentation Materials

2025 Host
Technische Universität Wien
2025 Gold Sponsors
AMD
Arm
Collabora
Microsoft
NVIDIA
Snap AR
2025 Silver Sponsors
CodeWeavers
FEX-Emu
Igalia
Qualcomm
The Linux Foundation
2025 Bronze Sponsors
Khronos Group
Libre Computer