Bug#987431: Graphical session or LightDM do not close until unattended-upgrades has applied all updates

[Yvan Masson]

Package: unattended-upgrades
Version: 2.8
Severity: normal

Dear Maintainer,




- icons on the desktop disappear

- it is still possible to start applications







Regards,
Yvan


1. Here are the files I create to configure unattended-upgrades:
$ cat /etc/apt/apt.conf.d/21periodic
  APT::Periodic::Unattended-Upgrade "1";
  APT::Periodic::CleanInterval "1";

$ cat /etc/apt/apt.conf.d/51unattended-upgrades-local
Unattended-Upgrade::Origins-Pattern {
  "origin=Debian,codename=bullseye,label=Debian";
  "origin=Debian,codename=bullseye,label=Debian-Security";
  "origin=Debian,codename=bullseye-updates,label=Debian";
};
Unattended-Upgrade::InstallOnShutdown "true";

$ cat /etc/systemd/logind.conf.d/unattended-upgrades.conf
[Login]
# 30 minutes delay
InhibitDelayMaxSec=1800


2. This matches the following error in ~/.xsession-errors:



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

Kernel: Linux 5.10.0-6-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_WARN

Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages unattended-upgrades depends on:
ii  debconf [debconf-2.0]  1.5.75
ii  lsb-base               11.1.0
ii  lsb-release            11.1.0
ii  python3                3.9.2-2
ii  python3-apt            2.1.7
ii  python3-dbus           1.2.16-5
ii  python3-distro-info    1.0
ii  ucf                    3.0043
ii  xz-utils               5.2.5-2

Versions of packages unattended-upgrades recommends:
ii  anacron             2.3-30
ii  cron [cron-daemon]  3.0pl1-137
ii  systemd-sysv        247.3-3

Versions of packages unattended-upgrades suggests:
pn  bsd-mailx                                  <none>
ii  exim4-daemon-light [mail-transport-agent]  4.94-17
ii  needrestart                                3.5-2
ii  powermgmt-base                             1.36
ii  python3-gi                                 3.38.0-2

-- debconf information excluded

I am preparing some Debian 11 desktops (for when it will be the new stable). The setup is very simple: no root account, one partition, tasks desktop/Cinnamon/standard tools/SSH. Unattended-upgrades is configured to install updates on shutdown (see 1): upgrading works properly, but is very disturbing for the users: When the user chooses to shutdown or reboot the computer from his Cinnamon session, the session does not close until all updates are applied. While waiting: - the usual menu that allows choosing between suspend/hibernate/reboot/cancel/shutdown won't appear again (see 2) When a user session has been opened, then closed, and the user clicks on shutdown or reboot from LightDM, the behavior is similar: LightDM does not stop. It is even possible to log in again, while unattended-upgrades is applying updates, but when updates are applied the computer shutdowns/reboots as requested originally from LightDM. I would expect the session to be completely closed, LightDM stopped, and the console or Plymouth displaying a message indicating the ongoing updates. I am almost sure this has already worked for me in a previous Debian version or Ubuntu, with the same setup from me. Please let me know if you need more information or if you want me to do some tests. Cjs-message: 09:26:35.004: JS LOG: Ignored exception from dbus method: GIO.IOErrorEnum: GDBus:Error:org.gnome.SessionManager.NotInRunning: Shutdown interface is only available during the Running phase Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set

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