I just installed 2 different laptops with the Debian Buster installer (testing).
Both are using XFCE+ligthdm+NVIDIA gforce (with driver from the nvidia-driver package). In both laptops, if I suspend the session and try to get it back (for example, by closing the laptop lid) all I will get is a black screen. I have to manually restart lightdm in a tty. I've scanned lightm/xorg/syslog/dmesg for clues, segfaults or whatever, but I don't find anything relevant. Please, advice, how to provide useful data related to this bug. Anyway this was present in /var/log/lightdm/seat0-greeter.log. Not sure if even related to the suspend mechanism: ==== 8< ==== ** Message: 13:23:14.524: Starting lightdm-gtk-greeter 2.0.5 (May 21 2018, 13:54:11) ** Message: 13:23:14.524: [Configuration] Reading file: /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf ** Message: 13:23:14.524: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf ** (lightdm-gtk-greeter:3450): WARNING **: 13:23:14.586: [PIDs] Failed to execute command: upstart ** (lightdm-gtk-greeter:3450): WARNING **: 13:23:14.881: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files (lightdm-gtk-greeter:3450): Gtk-WARNING **: 13:23:14.943: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node menubar owner GreeterMenuBar) (lightdm-gtk-greeter:3450): Gtk-WARNING **: 13:23:16.225: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node menubar owner GreeterMenuBar) ** (lightdm-gtk-greeter:3450): WARNING **: 13:23:16.296: [PIDs] Failed to terminate process #3471: No such process ==== 8< ==== Package versions: dpkg -l xorg lightdm nvidia-driver xfce4 Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============-============-========================================================= ii lightdm 1.26.0-3 amd64 simple display manager ii nvidia-driver 390.87-2 amd64 NVIDIA metapackage ii xfce4 4.12.4 all Meta-package for the Xfce Lightweight Desktop Environment ii xorg 1:7.7+19 amd64 X.Org X Window System
