The same thing happened to me, and installing systemd-sysv also fixed the problem. I am adding more info to help others find it. (also appears, perhaps: https://bbs.archlinux.org/viewtopic.php?id=183923 )
Here are the first set of ominous errors from :0-greeter.log that might be related: " Gjs-Message: JS LOG: Failed to register AuthenticationAgent(gnome-shell:2561): Gjs-WARNING **: JS ERROR: Exception in callback for signal: startup-prepared: Gio.DBusError: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: No session available LoginDialog<._init@resource:///org/gnome/shell/gdm/loginDialog.js:376 wrapper@resource:///org/gnome/gjs/modules/lang.js:169 _Base.prototype._construct@resource:///org/gnome/gjs/modules/lang.js:110 Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/lang.js:204 ScreenShield<._ensureUnlockDialog@resource:///org/gnome/shell/ui/screenShield.js:973 wrapper@resource:///org/gnome/gjs/modules/lang.js:169 ScreenShield<.showDialog@resource:///org/gnome/shell/ui/screenShield.js:919 wrapper@resource:///org/gnome/gjs/modules/lang.js:169 _initializeUI/<@resource:///org/gnome/shell/ui/main.js:208 _emit@resource:///org/gnome/gjs/modules/signals.js:124 LayoutManager<._prepareStartupAnimation@resource:///org/gnome/shell/ui/layout.js:623 wrapper@resource:///org/gnome/gjs/modules/lang.js:169 LayoutManager<._loadBackground/signalId<@resource:///org/gnome/shell/ui/layout.js:568 _emit@resource:///org/gnome/gjs/modules/signals.js:124 SystemBackground<._init/<.onFinished<@resource:///org/gnome/shell/ui/background.js:650 BackgroundCache<._loadImageContent/<@resource:///org/gnome/shell/ui/background.js:208 " Also see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=747821 (systemd-shim) -- at least, I experienced these symptoms simultaneously. -p -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
