Comment 121 for bug 1574120

I'm experiencing this issue after upgrading from 16.04 to 18.04 on a Thinkpad T460p.

I have set the following in /etc/systemd/logind.conf and restarted systemd-logind.service (which logged me out of my session)

HandleSuspendKey=suspend
HandleHibernateKey=suspend
HandleLidSwitch=suspend
HandleLidSwitchDocked=suspend

journalctl shows "systemd-logind[20403]: Lid closed." when I close the lid, but it does not take any action other than my external monitor shutting off briefly before turning back on. pm-utils is installed. There's nothing else in the system logs related to suspend, and the power light on the laptop lid does not start pulsing like it used to do when it began to suspend. So the lid closed event is not triggering it to attempt to suspend, despite the correct logind configuration.

My laptop is in a docking station and also has an external monitor connected.