** Description changed:

+ Posting here what gnome says about porting to wayland, and their tests:
+ 
+ GNOME Applications under Wayland
+ GTK+ has a Wayland backend. If it was enabled at compile-time, you can run a 
GTK+ application under Wayland simply by:
+ 
+ GDK_BACKEND=wayland gnome-calculator
+ Applications that use Clutter or clutter-gtk also need the Clutter Wayland 
backend enabled:
+ 
+ GDK_BACKEND=wayland CLUTTER_BACKEND=wayland cheese
+ 
+ https://wiki.gnome.org/Initiatives/Wayland/Applications
+ 
+ ======> so maybe a simple rebuilt can do the trick
+ 
+ 
********************************************************************************************************************************************
+ 
+ 
  With the today packages upgrade, switching from X11 to wayland, synaptic
  refuse to load/open:
  
  from the icon into the dash-to-dock, nothing happen
  from the terminal:
  
  sudo synaptic
  [sudo] password for oem:
  Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: 
Connection refused
  
  (synaptic:2154): Gtk-WARNING **: cannot open display: :0
  
  Previous days already have switching some packages to wayland, but
  synaptic was still working. Its only with the today upgrades, after a
  cold reboot, that synaptic gui is broken.
  
  Today possibly sources problem:
  
  Unpacking console-setup-linux (1.142ubuntu7) over (1.142ubuntu5) ...
  
  Unpacking console-setup (1.142ubuntu7) over (1.142ubuntu5) ...
  
  Unpacking keyboard-configuration (1.142ubuntu7) over (1.142ubuntu5) ...
  
  Unpacking gnome-session-bin (3.24.1-0ubuntu22) over (3.24.1-0ubuntu21)
  ...
  
  Unpacking gdm3 (3.25.90.1-0ubuntu2) over (3.25.90.1-0ubuntu1) ...
  
  Unpacking libgdm1 (3.25.90.1-0ubuntu2) over (3.25.90.1-0ubuntu1) ...
  
  Unpacking gir1.2-gdm-1.0 (3.25.90.1-0ubuntu2) over (3.25.90.1-0ubuntu1)
  ...
  
  Unpacking ubuntu-session (3.24.1-0ubuntu22) over (3.24.1-0ubuntu21) ...
  
  Unpacking gnome-session (3.24.1-0ubuntu22) over (3.24.1-0ubuntu21) ...
  ...
  Unpacking gnome-session-common (3.24.1-0ubuntu22) over (3.24.1-0ubuntu21) ...
  Setting up keyboard-configuration (1.142ubuntu7) ...
  
  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: synaptic 0.84.2
  ProcVersionSignature: Ubuntu 4.12.0-12.13-generic 4.12.8
  Uname: Linux 4.12.0-12-generic x86_64
  ApportVersion: 2.20.6-0ubuntu6
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Mon Aug 21 16:21:47 2017
  EcryptfsInUse: Yes
  SourcePackage: synaptic
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1712089

Title:
  Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not
  connect: Connection refused

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