Package: gnome-session Version: 3.16.0-1 Followup-For: Bug #732832 This problem still exists in the current version of gnome session. No idea who thought it was a good thing to spam the system logger.
If you do something in rsyslog.conf like the following it helps: *.*;user,auth,authpriv.none -/var/log/syslog The user part is added. At least that calms down the syslog file and makes logcheck useful again. -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.0.0-2-amd64 (SMP w/6 CPU cores) Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gnome-session depends on: ii gnome-session-bin 3.16.0-1 ii gnome-session-common 3.16.0-1 ii gnome-settings-daemon 3.16.2-3 ii gnome-shell 3.16.3-1 gnome-session recommends no packages. Versions of packages gnome-session suggests: ii desktop-base 8.0.2 ii gnome-keyring 3.16.0-4 ii gnome-user-guide 3.16.1-1 -- no debconf information

