1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Proposal For Wayland With Virtual Terminals

Wayland

Published on 05 July 2012 07:19 AM EDT
Written by Michael Larabel in Wayland
13 Comments

The developer responsible for KMSCON and FBLOG is seeking comments on a proposed design for virtual terminals and multiple seats that relies upon Wayland as a system-wide compositor.

David Herrmann, the developer responsible for this work, has for months been on a quest to kill CONFIG_VT for virtual terminals from the Linux kernel. Having written KMSCON, a DRM-based terminal emulator, he's planning to write some user-space VT logic similar to what's in the kernel. He wants to support multiple virtual terminals for each seat. At present, systemd doesn't differentiate or allow assigning different VTs to different seats nor is there a way of making the kernel VTs multi-seat capable.

With Herrmann communicating with Lennart, they came up with some ideas, including the use of Wayland as a system-wide compositor for handling all video input. One of his ideas is having a global deaemon on a DBus like system to register/deregister clients and clients can request changing the currently active VT. This design would be similar to what's currently done by the Linux kernel. There's also a more limited option of just having common Dbus names for each seat and when a VT claims the particular name any other client requesting access will be placed in a waiting queue. It would also be possible to extend the Linux kernel VT API to be seat-capable, but David beleives already this is the worst idea.

Lastly, David Herrmann is also looking for Wayland to help here. He is exploring the idea of using Wayland as a central VT-master that runs a central compositor on each seat that acquires the video and input devices for each seat. The compositor would run all clients in full-screen mode and the VT application would then run on top of Wayland. It's not guaranteed they will end up going with this approach as it's the most complex and there's some other engineering hurdles to overcome, but it's what currently is being discussed.

For those wanting more information or to jump in on the discussion, see the Wayland development list

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  2. KDE's KWin On Wayland Begins Using Libinput
  3. Khronos Releases OpenVX 1.0 Specification
  4. Linux Kernel Working Towards GNU11/C11 Compatibility
  5. Ubuntu 15.04 Is Codenamed After A Monkey: Vivid Vervet
  6. Following GCC, Clang Looks To Default To C11
  7. Users/Developers Threatening Fork Of Debian GNU/Linux
  8. Linux 3.18-rc1 Released One Week Early With Many Changes
  9. The VC4 Gallium3D Driver Is Still Moving Along For The Raspberry Pi
  10. Direct3D 9 Support Might Land Within Mainline Mesa 3D Drivers
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. HOPE: The Ease Of Python With The Speed Of C++
  3. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  4. AMD Is Restructuring Again, Losing 7% Of Employees
  5. Bye bye BSD, Hello Linux: A Sys Admin's Story
  6. Open-Source AMD Fusion E-350 Support Takes A Dive
  7. Upgrade to Kaveri, very slow VDPAU performance
  8. ChromeOS Drops Support For EXT2/EXT3/EXT4 File-Systems