Difference between revisions of "Wayland"

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GNOME will be ported to Wayland in a future version.
 
GNOME will be ported to Wayland in a future version.
 
===MeeGo===
 
MeeGo will be ported to Wayland in a future version.
 
  
 
===Unity===
 
===Unity===

Revision as of 19:46, 12 February 2012

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Summary help replacing me
A guide to installing and running the Wayland display server.
Related
KMS
Xorg

Wayland is a new windowing protocol for Linux. Utilization of Wayland requires changes to and re-installation of parts of your system's software. Therefore this article will assume you are familiar with ABS - The Arch Build System, or at the least the ideas behind PKGBUILD and makepkg. For more information on Wayland see its homepage.

Warning: Wayland is under heavy development and is still an early experiment. Support can not be guaranteed and it may not function as you expect.

Requirements

Currently Wayland will only work with on a system that is utilizing KMS.

Installation

You need to build and install libxkbcommonAUR, wayland-gitAUR and mesa-full-waylandAUR from AUR. Replacement of the Mesa stack is required because the stock one does not support Wayland.

Usage

As Wayland is only a library, it is useless on its own. To use it, you need the demo applications (weston-gitAUR in AUR), Qt with QPA (Lighthouse) support and Wayland plugin, and/or GTK with Wayland support.

Demo applications

Installation

You need to build and install cairo-gl-gitAUR and weston-gitAUR from AUR.

Usage

Now that Wayland and its requirements are installed you should be ready to test it out. Try switching to a terminal and running:

# weston -b /backgroundimage.png

Note I was having trouble with keyboard & mouse not working unless this was run as root

You can also try:

# EGL_DRIVER=/usr/lib/egl/egl_gallium.so

if you have troubles with nouveau driver.

Then at a TTY you can run the demos:

# weston-terminal

Should launch a terminal emulator.

# weston-flower 

Moves a flower around the screen. This tests the frame protocol.

# weston-gears

Runs glxgears on Wayland.

# weston-image

Loads the image files passed in the command and displays them.

# weston-view

Displays PDF files. This needs to be passed file URIs (/path/to/pdf).

Qt

Installation

You need to build and install qt-qpaAUR from AUR. It contains a development version of Qt 4.8 compiled with QPA (Lighthouse) support. It installs into /opt/qt-qpa because it's binary incompatible with non-QPA version of Qt (like the stock one).

Usage

At first, you need a working Wayland compositor, like the one from demo applications, or an experimental version of KWin.

Then compile any qmake-based Qt project:

# export PATH=/opt/qt-qpa/bin:$PATH
# export LD_LIBRARY_PATH=/opt/qt-qpa/lib
# qmake
# make

And run it by executing the compiled binary:

# export LD_LIBRARY_PATH=/opt/qt-qpa/lib
# export QT_QPA_PLATFORM=waylandgl
# ./binaryname

Qt Compositor

There is ongoing work to make Qt-Compositor, a base layer to make custom Qt compositors on top of Wayland.

Other GUI libraries

(page from official website)

GTK+

With GTK+ 3.0, GTK+ gained support for multiple backends at runtime and can switch between backends in the same way Qt can with lighthouse. The Wayland support is on the upstream GTK+ master branch but disabled by default. To try GTK+ on Wayland, check out gtk+ and pass --enable-wayland to configure:

# git clone git://git.gnome.org/gtk+
# cd gtk+
# ./configure --prefix=/usr --enable-x11-backend --enable-wayland-backend --enable-debug=yes
# make

When both Wayland and X backends are enabled, GTK+ will default to the X11 backend, but this can be overridden by setting the GDK_BACKEND environment variable to wayland.

Note: Alternatively, you can install gtk3-gitAUR from the AUR.

Clutter

The Clutter toolkit has a Wayland backend that allows it to run as a Wayland client. The backend is in the master branch of the main repo and can be activated by passing --with-flavour=wayland to the configure script.

SDL

Benjamin Franzke is working on a port of SDL to Wayland, it's available in his sdl-wayland repo on freedesktop.org.

EFL

EFL is currently being ported to Wayland, according to the developer (Christopher Michael aka devilhorns); everything but E17 works at this time. Please see here for details.

Window managers and desktop shells

KDE

The KDE Wayland support is expected to come in three phases, with the first two phases expected to be completed next year during the KDE SC 4.8 and 4.9 development cycles. Please see here for details.

Also, there is early work to make it possible to run KWin (KDE's window manager) on Wayland.

GNOME

GNOME will be ported to Wayland in a future version.

Unity

Ubuntu desktop shell Unity, using Compiz window manager, was announced to be ported to Wayland.

More Information

For more information you can see the ongoing forum discussion on Wayland.