[regression] Cosmic login screen never appears on about 50% of boots

[Daniel van Vugt]

https://gitlab.gnome.org/GNOME/gdm/issues/410

---

In the past week or two, cosmic has failed to finish booting in about half of all cases (on multiple machines). The problem is that the graphical login screen never appears. Instead the machine stays on a text console.

WORKAROUND:
I can force the system to finish booting and make the login screen appear just by switching VTs and back:
  Ctrl+Alt+F4, Ctrl+Alt+F1
Then within a second or so the login screen appears.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gdm3 3.29.90-2ubuntu1
ProcVersionSignature: Ubuntu 4.17.0-6.7-generic 4.17.9
Uname: Linux 4.17.0-6-generic x86_64
ApportVersion: 2.20.10-0ubuntu7
Architecture: amd64
Date: Tue Aug 14 09:19:45 2018
InstallationDate: Installed on 2018-05-26 (79 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180525)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Incomplete. Since I logged this bug gdm3 has upgraded and I get bug 1786883 instead.

[Daniel van Vugt (vanvugt)]

Confirmed again, on a couple of machines now.

[Daniel van Vugt (vanvugt)]

Upstream:
https://gitlab.gnome.org/GNOME/mutter/issues/265

[Daniel van Vugt (vanvugt)]

Now upstream:
https://gitlab.gnome.org/GNOME/gdm/issues/410

[Daniel van Vugt (vanvugt)]

This patch seems to fix it:
https://gitlab.gnome.org/GNOME/gdm/merge_requests/32

[Daniel van Vugt (vanvugt)]

gdm3 (3.30.0-0ubuntu1) cosmic; urgency=medium

  * Updated to 3.30.0 release:
    - build fixes
    - search for sessions in XDG_DATA_DIRS
    - blacklist some more wayland unfriendly hardware
    - initial setup fix
    - flicker fix
    - misc bug fixes
  * debian/gdm3.install:
    - install udev rules in the correct folder (following upstream build
      fixes)

 -- Didier Roche <email address hidden> Wed, 05 Sep 2018 11:20:11 +0200