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

Status in GNOME Shell:
Status in gnome-shell package in Ubuntu:
Status in mutter package in Ubuntu:

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



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


  Proposed fix:


  $ 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 
  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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