[Bug 1844509] Re: ubiquity-dm fails to start

[Ubuntu QA Website]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1844509

** Tags added: iso-testing

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Title:
  ubiquity-dm fails to start

Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu Desktop 20190917

  ubiquity-dm fails to start.

  Test Case:
  Boot the iso

  Actual result
  Black screen and an error dialog saying the the installer failed to start.

  There are several critical messages in dm logs:

  biquity-dm: starting
  ubiquity-dm: plymouth
  ubiquity-dm: start X ['X', '-br', '-ac', '-noreset', '-nolisten', 'tcp', '-background', 'none', 'vt1', ':0']
  Kernel command line: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet splash --- maybe-ubiquity
  ubiquity-dm: set vars
  ubiquity-dm: pam_open_session
  ubiquity-dm: dm-scripts
  ubiquity-dm: dconf-service
  ubiquity-dm: start frontend gtk_ui
  ubiquity-dm: start greeter
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.861: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.861: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.861: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.862: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.874: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.874: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.877: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): Clutter-CRITICAL **: 09:17:29.879: _clutter_stage_queue_event: assertion 'CLUTTER_IS_STAGE (stage)' failed
  (gnome-shell:1418): IBUS-CRITICAL **: 09:17:30.009: ibus_bus_hello: assertion 'ibus_bus_is_connected (bus)' failed
  (gnome-shell:1418): GLib-GIO-CRITICAL **: 09:17:30.014: Error while sending AddMatch() message: The connection is closed
  (gnome-shell:1418): IBUS-CRITICAL **: 09:17:30.014: ibus_bus_call_async: assertion 'ibus_bus_is_connected (bus)' failed
  (gnome-shell:1418): IBUS-CRITICAL **: 09:17:30.014: ibus_bus_call_async: assertion 'ibus_bus_is_connected (bus)' failed
  ubiquity-dm: greeter exited with code 143
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:30.787: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.278: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.283: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.285: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.286: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.288: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GObject-CRITICAL **: 09:17:31.408: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
  (gnome-shell:1418): GLib-GIO-CRITICAL **: 09:17:31.450: Error while sending AddMatch() message: The connection is closed
  ubiquity-dm: Exiting with code 143

  
  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubiquity 19.10.9
  ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8
  Uname: Linux 5.3.0-10-generic x86_64
  ApportVersion: 2.20.11-0ubuntu7
  Architecture: amd64
  CasperVersion: 1.415
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Sep 18 09:18:56 2019
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190917)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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