Bug#897975: gdm3: System fails to boot due to GDM restarting constantly.

[Mladen Mijatov]

Package: gdm3
Version: 3.28.1-1
Severity: grave
Justification: renders package unusable

Dear Maintainer,

After recent update system is unable to boot due to GDM3 constantly restarting.
Journal contained message "IceLockAuthFile fail: Already exists" before GDM
exiting and starting againg.

Other than this I was unable to find any other issue.

Only solution I could find to make my system usable again is to install LigthDM



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gdm3 depends on:
ii  accountsservice                       0.6.45-1
ii  adduser                               3.117
ii  dconf-cli                             0.28.0-2
ii  dconf-gsettings-backend               0.28.0-2
ii  debconf [debconf-2.0]                 1.5.66
ii  gir1.2-gdm-1.0                        3.28.1-1
ii  gnome-session [x-session-manager]     3.28.1-1
ii  gnome-session-bin                     3.28.1-1
ii  gnome-settings-daemon                 3.28.1-1
ii  gnome-shell                           3.28.0-1+b1
ii  gnome-terminal [x-terminal-emulator]  3.28.0-1
ii  gsettings-desktop-schemas             3.28.0-1
ii  libaccountsservice0                   0.6.45-1
ii  libaudit1                             1:2.8.2-1
ii  libc6                                 2.27-3
ii  libcanberra-gtk3-0                    0.30-6
ii  libcanberra0                          0.30-6
ii  libgdk-pixbuf2.0-0                    2.36.11-2
ii  libgdm1                               3.28.1-1
ii  libglib2.0-0                          2.56.1-2
ii  libglib2.0-bin                        2.56.1-2
ii  libgtk-3-0                            3.22.29-3
ii  libkeyutils1                          1.5.9-9.2
ii  libpam-modules                        1.1.8-3.7
ii  libpam-runtime                        1.1.8-3.7
ii  libpam-systemd                        238-4
ii  libpam0g                              1.1.8-3.7
ii  librsvg2-common                       2.40.20-2
ii  libselinux1                           2.7-2+b2
ii  libsystemd0                           238-4
ii  libwrap0                              7.6.q-27
ii  libx11-6                              2:1.6.5-1
ii  libxau6                               1:1.0.8-1+b2
ii  libxcb1                               1.13-1
ii  libxdmcp6                             1:1.1.2-3
ii  lsb-base                              9.20170808
ii  mutter [x-window-manager]             3.28.1-2
ii  policykit-1                           0.105-20
ii  ucf                                   3.0038
ii  x11-common                            1:7.7+19
ii  x11-xserver-utils                     7.7+8

Versions of packages gdm3 recommends:
ii  at-spi2-core    2.28.0-2
ii  desktop-base    9.0.5
ii  x11-xkb-utils   7.7+4
ii  xserver-xephyr  2:1.19.6-1
ii  xserver-xorg    1:7.7+19
ii  zenity          3.28.1-1

Versions of packages gdm3 suggests:
pn  gnome-orca            <none>
pn  libpam-fprintd        <none>
ii  libpam-gnome-keyring  3.28.0.2-1

-- debconf information:
* shared/default-x-display-manager: lightdm
  gdm3/daemon_name: /usr/sbin/gdm3