[Lubuntu-admins] [Bug 1712089] Re: Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Connection refused

[jerrylamos <jerrylamos@xxxxxxxxxxxx>]

"Wayland" doesn't appear to care how many bugs they have created with
their philosophical decision to not allow actions like "sudo synaptic"
starting a graphical application from the command line.  Is there any
rationale??

Thanks, Jerry

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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

Status in Software Updater:
  New
Status in synaptic package in Ubuntu:
  Triaged

Bug description:
  List of pkexec'ed applications is located in bug 1713313.
  List of packages which use su-to-root and gksu/gksudo is located in bug 1713311.

  -----------------------------------------------------------------------------
  pkexec'ed applications may be healed with "xhost +si:localuser:root" placed in XDG autostart as follows:

  cat <<EOF | sudo tee /etc/xdg/autostart/xhost.desktop
  [Desktop Entry]
  Name=xhost
  Comment=Fix graphical root applications
  Exec="xhost +si:localuser:root"
  Terminal=false
  Type=Application
  EOF

  -----------------------------------------------------------------------------

  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 hope the settings are well set at compile time; maybe a
  rebuilt to get sure all apps are ok.

  ********************************************************************************************************************************************

  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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