Provided by: weston_1.9.0-3_i386 bug


       weston - the reference Wayland server




       weston  is  the reference implementation of a Wayland server. A Wayland
       server is a display server, a window manager, and a compositor  all  in
       one.  Weston  has  several  backends as loadable modules: it can run on
       Linux KMS (kernel modesetting via DRM),  as  an  X  client,  or  inside
       another Wayland server instance.

       Weston   supports  fundamentally  different  graphical  user  interface
       paradigms via shell plugins. Two  plugins  are  provided:  the  desktop
       shell, and the tablet shell.

       When  weston is started as the first windowing system (i.e. not under X
       nor under another Wayland server), it should be done with  the  command
       weston-launch to set up proper privileged access to devices.

       Weston also supports X clients via XWayland, see below.

              The  DRM backend uses Linux KMS for output and evdev devices for
              input.  It supports multiple monitors in a unified desktop  with
              DPMS. See weston-drm(7), if installed.
              The  Wayland backend runs on another Wayland server, a different
              Weston instance, for  example.  Weston  shows  up  as  a  single
              desktop window on the parent server.
              The  X11 backend runs on an X server. Each Weston output becomes
              an X window. This is a cheap way to test  multi-monitor  support
              of a Wayland shell, desktop, or applications.


       Each  of  these  shells  have  its  own  public  protocol interface for
       clients.  This means that a client must be specifically written  for  a
       shell protocol, otherwise it will not work.

       Desktop shell
              Desktop   shell   is   like  a  modern  X  desktop  environment,
              concentrating on traditional keyboard and mouse user  interfaces
              and  the  familiar desktop-like window management. Desktop shell
              consists of the shell plugin  and  the  special
              client weston-desktop-shell which provides the wallpaper, panel,
              and screen locking dialog.

       Fullscreen shell
              Fullscreen shell is intended for a client  that  needs  to  take
              over  whole  outputs,  often  all  outputs.  This  is  primarily
              intended for running another compositor  on  Weston.  The  other
              compositor  does  not need to handle any platform-specifics like
              DRM/KMS or evdev/libinput.  The shell consists only of the shell

              In-vehicle  infotainment  shell  is a special purpose shell that
              exposes a GENIVI Layer  Manager  compatible  API  to  controller
              modules,  and a very simple shell protocol towards clients. IVI-
              shell starts with loading, and  then  a  controller
              module which may launch helper clients.


       XWayland requires a special server to be installed. This X server
       will connect to a Wayland server as a Wayland  client,  and  X  clients
       will connect to the X server. XWayland provides backwards compatibility
       to X applications in a Wayland stack.

       XWayland is activated by instructing weston to load module,
       see  EXAMPLES.   Weston starts listening on a new X display socket, and
       exports it in the environment  variable  DISPLAY.   When  the  first  X
       client connects, Weston launches a special X server as a Wayland client
       to handle the X client and all future X clients.

       It has also its own X window manager where cursor themes and sizes  can
       be  chosen  using  XCURSOR_PATH and XCURSOR_SIZE environment variables.


   Weston core options:,
              Load instead of the  default  backend.  The  file  is
              searched  for in /usr/lib/i386-linux-gnu/weston, or you can pass
              an absolute path. The default backend is  unless
              the    environment   suggests   otherwise,   see   DISPLAY   and

       -cconfig.ini, --config=config.ini
              Load config.ini instead of weston.ini.  The argument can also be
              an  absolute  path  starting  with  a  /.   If  the  path is not
              absolute, it will be searched in the normal  config  paths,  see
              weston.ini(5).   If  also --no-config is given, no configuration
              file will be read.

              Print the program version.

       -h, --help
              Print a summary of command line options, and quit.

       -iN, --idle-time=N
              Set the idle timeout to N seconds. The default  timeout  is  300
              seconds.  When  there  has  not been any user input for the idle
              timeout, Weston enters an inactive mode.  The  screen  fades  to
              black,  monitors  may  switch  off,  and  the shell may lock the
              session.  A value of 0 effectively disables the timeout.

              Append log messages to the file file.log instead of writing them
              to stderr.,
              Load  the comma-separated list of modules. Only used by the test
              suite.  The  file  is  searched  for   in   /usr/lib/i386-linux-
              gnu/weston, or you can pass an absolute path.

              Do  not  read weston.ini for the compositor. Avoids e.g. loading
              compositor modules via the configuration file, which  is  useful
              for unit tests.

       -Sname, --socket=name
              Weston  will  listen  in the Wayland socket called name.  Weston
              will export WAYLAND_DISPLAY with this value in  the  environment
              for  all  child  processes to allow them to connect to the right
              server automatically.

   DRM backend options:
       See weston-drm(7).

   Wayland backend options:
              Name  of  the  Wayland  display  to   connect   to,   see   also
              WAYLAND_DISPLAY of the environment.

              Create a single fullscreen output

              Create N Wayland windows to emulate the same number of outputs.

       --width=W, --height=H
              Make all outputs have a size of WxH pixels.

              Give all outputs a scale factor of N.

              Use the pixman renderer.  By default, weston will try to use EGL
              and GLES2 for rendering and will fall back to  the  pixman-based
              renderer  for  software  compositing  if  EGL  cannot  be  used.
              Passing  this  option  will  force  weston  to  use  the  pixman

   X11 backend options:

              Do  not  provide  any input devices. Used for testing input-less

              Create N X windows to emulate the same number of outputs.

       --width=W, --height=H
              Make the default size of each X window WxH pixels.

              Give all outputs a scale factor of N.

              Use the pixman renderer.  By default weston will try to use  EGL
              and  GLES2  for rendering.  Passing this option will make weston
              use the pixman library for software compsiting.


       If the environment variable is set, the configuration file is read from
       the respective path, or the current directory if neither is set.



              The  X  display.  If  DISPLAY is set, and WAYLAND_DISPLAY is not
              set, the default backend becomes

              If set to  any  value,  causes  libwayland  to  print  the  live
              protocol to stderr.

              The  name  of the display (socket) of an already running Wayland
              server, without the path. The directory  path  is  always  taken
              from XDG_RUNTIME_DIR.  If WAYLAND_DISPLAY is not set, the socket
              name is "wayland-0".

              If WAYLAND_DISPLAY is already set, the default  backend  becomes
       This  allows  launching Weston as a nested

              For Wayland clients, holds the file descriptor of an open  local
              socket to a Wayland server.

              Weston   sets   this  variable  to  the  absolute  path  of  the
              configuration file it loads, or to the empty string if  no  file
              is  used.  Programs  that  use  weston.ini  will  read  the file
              specified by this variable instead, or do not read any  file  if
              it  is  empty. Unset variable causes falling back to the default
              name weston.ini.

              Set the list of paths to look for cursors in.  It  changes  both
              libwayland-cursor and libXcursor, so it affects both Wayland and
              X11 based clients. See xcursor (3).

              This variable can be  set  for  choosing  an  specific  size  of
              cursor. Affect Wayland and X11 clients. See xcursor (3).

              If set, specifies the directory where to look for weston.ini.

              The  directory  for  Weston's  socket  and  lock files.  Wayland
              clients will automatically use this.


       Weston has a segmentation fault handler, that attempts to  restore  the
       virtual  console or ungrab X before raising SIGTRAP.  If you run weston
       under gdb(1) from an X11 terminal or a different virtual terminal,  and
       tell gdb

              handle SIGSEGV nostop

       This will allow weston to switch back to gdb on crash and then gdb will
       catch the crash with SIGTRAP.


       Bugs  should  be  reported   to   the   bugzilla   at   with  product  "Wayland"  and  component



       Launch Weston with the DRM backend on a VT

       Launch Weston with the DRM backend and XWayland support
              weston-launch --

       Launch Weston (wayland-1) nested in another Weston instance (wayland-0)
              WAYLAND_DISPLAY=wayland-0 weston -Swayland-1

       From an X terminal, launch Weston with the x11 backend