Debian sid systemd currently fails to poweroff for me XFCE (appears to) exit, the mouse point shows for a while, then the kernel/ shutdown log appears. The last message is: "A stop job is running for Session 2 of user me" Red asterisks (up to 3) appear to oscillate at left edge in an ascii "wait for me" animation. Requires hard powercycle to poweroff. How might I debug this? TIA Zenaan