Package: xfce4-panel Version: 4.12.0-3 Followup-For: Bug #751505 Note that dm-tool is lightdm specific, so it's probably not appropriate to execute that unconditionally.
One way could be to read /etc/X11/default-display-manager and run the appropriate command based on that. In the meantime, users can work around this with --- /usr/bin/gdmflexiserver #!/bin/sh exec dm-tool switch-to-greeter --- X -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (500, 'stable'), (300, 'unstable'), (200, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages xfce4-panel depends on: ii exo-utils 0.10.7-1 ii libatk1.0-0 2.18.0-1 ii libc6 2.21-9 ii libcairo2 1.14.6-1 ii libdbus-1-3 1.10.6-1 ii libdbus-glib-1-2 0.106-1 ii libexo-1-0 0.10.7-1 ii libfontconfig1 2.11.0-6.3 ii libfreetype6 2.6.1-0.1 ii libgarcon-1-0 0.4.0-2 ii libgdk-pixbuf2.0-0 2.32.3-1.2 ii libglib2.0-0 2.46.2-3 ii libgtk2.0-0 2.24.29-1 ii libice6 2:1.0.9-1+b1 ii libpango-1.0-0 1.38.1-1 ii libpangocairo-1.0-0 1.38.1-1 ii libpangoft2-1.0-0 1.38.1-1 ii libsm6 2:1.2.2-1+b1 ii libwnck22 2.30.7-5 ii libx11-6 2:1.6.3-1 ii libxext6 2:1.3.3-1 ii libxfce4ui-1-0 4.12.1-2 ii libxfce4util7 4.12.1-2 ii libxfconf-0-2 4.12.0-2+b1 xfce4-panel recommends no packages. xfce4-panel suggests no packages. -- no debconf information