1. If you have applied the workaround at the top of the bug then you
won't hit it any more.

2. If your system is experiencing a crash in the eglnative (Wayland)
code on startup then it will automatically fall back to using Xorg and
you will never hit this bug.

3. Finally, if you are subscribed to the wrong bug (ie. you don't use a
Core2 or Atom CPU) then your issues was something different and might
have been resolved elsewhere.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mutter in Ubuntu.
https://bugs.launchpad.net/bugs/1727356

Title:
  Login screen never appears on early generation Intel GPUs (Core2 and
  Atom etc)

Status in GNOME Shell:
  Confirmed
Status in mutter package in Ubuntu:
  Triaged

Bug description:
  Wayland sessions (including the login screen itself) don't start up on
  older Intel GPUs.

  ---

  Workaround:

  Ctrl+Alt+F4, log in, edit /etc/gdm3/custom.conf and uncomment the line:
  #WaylandEnable=false

  ---

  Proposed fix:
  https://gitlab.gnome.org/GNOME/mutter/merge_requests/160

  ---

  $ lsb_release -rd
  Description:  Ubuntu 17.10
  Release:      17.10

  Upgraded from 17.04 today.

  Steps to reproduce:

  - Start the PC or log out/end session in case it's running with an Xorg 
desktop already.
  - Attempt to log in, using 'Ubuntu'

  Expected to happen:

  Desktop appears.

  Actually happening:

  5 seconds of black screen, then the login screen appears again.

  Partial diagnosis:

  - Logging in using 'Ubuntu on Xorg' works fine and as expected.

  - Extracted a syslog of such a failed attempt, see attached file.
  ---
  ApportVersion: 2.20.7-0ubuntu3.1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  DisplayManager: gdm3DistroRelease: Ubuntu 17.10
  InstallationDate: Installed on 2016-05-04 (539 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  Package: gnome-shell 3.26.1-0ubuntu5
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Tags: artful package-from-proposed third-party-packages
  Uname: Linux 4.13.0-16-generic x86_64
  UpgradeStatus: Upgraded to artful on 2017-10-25 (0 days ago)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo www-data
  _MarkForUpload: True

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