I have been running Debian Sid on a laptop with a purged systemd for
quite a few months. Maybe when I now ran # aptitude update or
safe-upgrade for the first time after several months since the Sid
installation systemd-udevd seems to have switched my wireless interface
from wlan0 to wlp3s0.

Changing the entry in /etc/network/interfaces fixed that problem. So now
I could do a wireless aptitude update and safe-upgrade.

Even though in /etc/apt/preferences.d/systemd I have:

Package: "systemd"
Pin: origin ""
Pin-Priority: -1

Systemd was re-installed. Why didn't this systemd file prevent it?

Then I found that while root can run starx with no problem, when user
does it the desktop comes up frozen along with mouse and keyboard
input. I found this:

  $ cat /var/log/Xorg.0.log | grep EE
        (EE) systemd-logind: failed to gete session: The name \
          org.freedesktop.login1 was not provided by any .service  \
          files.

Systemd is not on the system, so where did systemd-logind come from? How
can I block it and recover a usable virtual desktop for user?

Haines Brown