Package: light-locker Version: 1.8.0-3 Followup-For: Bug #870641 Dear Maintainer,
Another user here with the same issue, using Jeremiah Mahler's workaround fixed the problem for me as well. I can confirm I see the same thing in the xorg logs, which is fbdev is being loaded. Afer the work around the display wakes up as normal. When the screen refused to wake up I could CTRL+ALT+F1 to tty1, and kill light-locker and then CTRL+ALT+F7 to get back into my xfce session. $ lspci -v [...] 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller Flags: bus master, fast devsel, latency 0, IRQ 46 Memory at f0000000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at 3000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 [...] -- System Information: Debian Release: 10.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores) Locale: LANG=en_CA.utf8, LC_CTYPE=en_CA.utf8 (charmap=UTF-8), LANGUAGE=en_CA: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] 0.30.1-2 ii libc6 2.28-10 ii libcairo2 1.16.0-4 ii libdbus-1-3 1.12.12-1 ii libdbus-glib-1-2 0.110-4 ii libglib2.0-0 2.58.3-1 ii libgtk-3-0 3.24.5-1 ii libpango-1.0-0 1.42.4-6 ii libpangocairo-1.0-0 1.42.4-6 ii libsystemd0 241-3 ii libx11-6 2:1.6.7-1 ii libxext6 2:1.3.3-1+b2 ii libxss1 1:1.2.3-1 ii lightdm 1.26.0-4 light-locker recommends no packages. light-locker suggests no packages. -- no debconf information