Package: light-locker Version: 1.8.0-1 Followup-For: Bug #870641 Here the same with intel igpu. After staying black, ctrl+alt+f1 and killing light-locker makes you able to go back to desktop and resume work.
Regards -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.14.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages light-locker depends on: ii dconf-gsettings-backend [gsettings-backend] 0.26.1-2 ii libc6 2.26-2 ii libcairo2 1.15.8-3 ii libdbus-1-3 1.12.2-1 ii libdbus-glib-1-2 0.108-3 ii libglib2.0-0 2.54.2-5 ii libgtk-3-0 3.22.26-2 ii libpango-1.0-0 1.40.14-1 ii libpangocairo-1.0-0 1.40.14-1 ii libsystemd0 236-2 ii libx11-6 2:1.6.4-3 ii libxext6 2:1.3.3-1+b2 ii libxss1 1:1.2.2-1+b2 ii lightdm 1.18.3-4 light-locker recommends no packages. light-locker suggests no packages. -- no debconf information