** Also affects: gnome-shell (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1820423

Title:
  monitors.xml is not parsed or applied correctly after reboot or
  shutdown

Status in gdm3 package in Ubuntu:
  New
Status in gnome-shell package in Ubuntu:
  New

Bug description:
  WORKAROUND: replace gdm3 with slick-greeter + lightdm-settings +
  gnome-screensaver + numlockx(optionally)

  ERROR(syslog) = "Failed to get current display configuration state:
  GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name
  "org.gnome.Mutter.DisplayConfig" does not exist"

  gnome-shell[3007]: JS ERROR: Exception in callback for signal: loaded:
  TypeError: monitor is
  
null#012_prepareStartupAnimation@resource:///org/gnome/shell/ui/layout.js:653:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_loadBackground/signalId<@resource:///org/gnome/shell/ui/layout.js:608:13#012_emit@resource:///org/gnome/gjs/modules/signals.js:128:27#012_init/id<@resource:///org/gnome/shell/ui/background.js:512:17

  CAUSE = clean install of Ubuntu 18.10(4.18.0-16-generic #17-Ubuntu SMP
  Fri Feb 8 00:06:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux), attach
  VGA as primary monitor and HDMI(wireless Tx) as secondary to projector
  and then apply custom monitor positioning using g-c-c "Displays"
  panel.

  RESULT = correct positioning and working of multiple displays until
  reboot or shutdown, then--problems until HDMI cable is unseated and
  rebooted again.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: gdm3 3.30.1-1ubuntu5.1
  ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20
  Uname: Linux 4.18.0-16-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.2
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 16 13:50:52 2019
  InstallationDate: Installed on 2019-03-07 (8 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 
(20181017.3)
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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