Package: gnome-shell Version: 3.16.3-2+b1 Followup-For: Bug #789118 I just encountered this problem again, and in addition to the repeated authentication failure messages, I also saw a message on the lock screen matching this one I later found in logs:
gnome-session[551]: (gnome-shell:956): Gjs-WARNING **: JS ERROR: Failed to start verification for user: Gio.DBusError: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Type of message, '(sssssssb)', does not match expected type '(sssssssbb)' This occurred after the following package upgrades prior to locking the screen: [UPGRADE] gir1.2-gtk-3.0:amd64 3.18.1-1 -> 3.18.1-2 [UPGRADE] libgail-3-0:amd64 3.18.1-1 -> 3.18.1-2 [UPGRADE] libgtk-3-0:amd64 3.18.1-1 -> 3.18.1-2 [UPGRADE] libgtk-3-bin:amd64 3.18.1-1 -> 3.18.1-2 [UPGRADE] libgtk-3-common:amd64 3.18.1-1 -> 3.18.1-2 [UPGRADE] gdm3:amd64 3.14.2-2 -> 3.18.0-1 [UPGRADE] gir1.2-gdm3:amd64 3.14.2-2 -> 3.18.0-1 [UPGRADE] libgdm1:amd64 3.14.2-2 -> 3.18.0-1 I'd guess the upgrade of gdm3 caused this issue. -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gnome-shell depends on: ii dconf-gsettings-backend [gsettings-backend] 0.24.0-2 ii evolution-data-server 3.18.0-3 ii gir1.2-accountsservice-1.0 0.6.40-3 ii gir1.2-atspi-2.0 2.18.0-1 ii gir1.2-caribou-1.0 0.4.18.1-1 ii gir1.2-clutter-1.0 1.24.0-1 ii gir1.2-freedesktop 1.46.0-1 ii gir1.2-gcr-3 3.18.0-1 ii gir1.2-gdesktopenums-3.0 3.18.0-1 ii gir1.2-gdm3 3.18.0-1 ii gir1.2-gkbd-3.0 3.6.0-1 ii gir1.2-glib-2.0 1.46.0-1 ii gir1.2-gnomebluetooth-1.0 3.18.0-1 ii gir1.2-gnomedesktop-3.0 3.16.2-2 ii gir1.2-gtk-3.0 3.18.1-2 ii gir1.2-gweather-3.0 3.18.0-1 ii gir1.2-ibus-1.0 1.5.10-1 ii gir1.2-mutter-3.0 3.16.3-1 ii gir1.2-networkmanager-1.0 1.0.6-1 ii gir1.2-nmgtk-1.0 1.0.6-2 ii gir1.2-pango-1.0 1.38.0-3 ii gir1.2-polkit-1.0 0.105-12 ii gir1.2-soup-2.4 2.52.0-1 ii gir1.2-telepathyglib-0.12 0.24.1-1 ii gir1.2-telepathylogger-0.2 0.8.1-1 ii gir1.2-upowerglib-1.0 0.99.3-1+b2 ii gjs 1.43.3-2 ii gnome-backgrounds 3.18.0-1 ii gnome-icon-theme-symbolic 3.12.0-1 ii gnome-settings-daemon 3.16.3-1 ii gnome-shell-common 3.16.3-2 ii gnome-themes-standard 3.18.0-1 ii gsettings-desktop-schemas 3.18.0-1 ii libatk-bridge2.0-0 2.18.0-1 ii libatk1.0-0 2.18.0-1 ii libc6 2.19-22 ii libcairo2 1.14.2-2 ii libcanberra-gtk3-0 0.30-2.1 ii libcanberra0 0.30-2.1 ii libclutter-1.0-0 1.24.0-1 ii libcogl-pango20 1.22.0-1 ii libcogl20 1.22.0-1 ii libcroco3 0.6.8-3+b1 ii libdbus-glib-1-2 0.102-1 ii libecal-1.2-19 3.18.0-3 ii libedataserver-1.2-21 3.18.0-3 ii libgcr-base-3-1 3.18.0-1 ii libgdk-pixbuf2.0-0 2.32.1-1 ii libgirepository-1.0-1 1.46.0-1 ii libgjs0e [libgjs0-libmozjs-24-0] 1.43.3-2 ii libglib2.0-0 2.46.0-2 ii libgstreamer1.0-0 1.6.0-1 ii libgtk-3-0 3.18.1-2 ii libical1a 1.0.1-0.1 ii libjson-glib-1.0-0 1.0.4-2 ii libmozjs-24-0 24.2.0-3 ii libmutter0f 3.16.3-1 ii libnm-glib4 1.0.6-1 ii libnm-util2 1.0.6-1 ii libpango-1.0-0 1.38.0-3 ii libpangocairo-1.0-0 1.38.0-3 ii libpolkit-agent-1-0 0.105-12 ii libpolkit-gobject-1-0 0.105-12 ii libpulse-mainloop-glib0 7.0-1 ii libpulse0 7.0-1 ii libsecret-1-0 0.18.3-1 ii libstartup-notification0 0.12-4 ii libsystemd0 227-2 ii libtelepathy-glib0 0.24.1-1 ii libx11-6 2:1.6.3-1 ii libxfixes3 1:5.0.1-2+b2 ii mutter 3.16.3-1 ii python3 3.4.3-6 ii telepathy-mission-control-5 1:5.16.3-1 Versions of packages gnome-shell recommends: ii gdm3 3.18.0-1 ii gkbd-capplet 3.6.0-1 ii gnome-contacts 3.18.0-1+b1 ii gnome-control-center 1:3.16.3-1 ii gnome-user-guide 3.18.0-1 ii unzip 6.0-18 gnome-shell suggests no packages. -- no debconf information
