Package: lightdm-gtk-greeter Version: 2.0.1-2 Followup-For: Bug #837895 I can confirm this bug on another platform. I also updated packages before rebooting today.
Initially a mouse symbol appears in the middle of the screen, then after a few seconds is displayed in the left upper corner. When - despite the black screen - typing in credentials (username tab password enter), first a cursor ('_') appears in the left upper corner of the screen and after a few seconds a mouse symbol again. Thus it seems the greeter does react somehow. When installing lightdm-kde-greeter as a replacement, I can login to Mate (and some things there don't work well). If I can help testing something, please let me know. -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (500, 'testing') Architecture: armhf (armv7l) Kernel: Linux 4.6.0-1-armmp-lpae (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages lightdm-gtk-greeter depends on: ii libc6 2.23-5 ii libcairo2 1.14.6-1+b1 ii libgdk-pixbuf2.0-0 2.34.0-1 ii libglib2.0-0 2.49.6-1 ii libgtk-3-0 3.21.5-3 ii liblightdm-gobject-1-0 1.18.2-2 ii libx11-6 2:1.6.3-1 Versions of packages lightdm-gtk-greeter recommends: ii adwaita-icon-theme [gnome-icon-theme-symbolic] 3.21.91-1 ii desktop-base 8.0.2 ii gnome-themes-standard 3.20.2-3 ii policykit-1 0.105-16 lightdm-gtk-greeter suggests no packages. -- no debconf information