System sleeps when configured not to do so

[David Oftedal]

The system has been configured not to sleep automatically in xfce4-power-manager.
Even so, it does sleep.
The following is shown in syslog:

Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.2267] manager: sleep requested (sleeping: no enabled: yes)
Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.2268] manager: sleeping...
Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.2290] device (wlp8s0): state change: unavailable -> unmanaged (reason 'sleeping', internal state 'managed')
Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.2406] manager: NetworkManager state is now ASLEEP
Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.2407] device (enp7s0): state change: activated -> deactivating (reason 'sleeping', internal state 'managed')
Nov 4 21:02:49 hostname NetworkManager[921]: <info> [1509825769.4260] device (enp7s0): state change: deactivating -> disconnected (reason 'sleeping', internal state 'managed')
Nov 4 21:02:50 hostname NetworkManager[921]: <info> [1509825769.7994] device (enp7s0): state change: disconnected -> unmanaged (reason 'sleeping', internal state 'managed')
Nov 4 21:02:50 hostname systemd[1]: Reached target Sleep.
Nov 4 21:02:50 hostname systemd-sleep[4391]: Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory
Nov 4 21:02:50 hostname systemd-sleep[4392]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
Nov 4 21:02:50 hostname systemd-sleep[4391]: Suspending system...

[David Oftedal (rounin)]

After adding the lines "HandleLidSwitch=ignore" and "IdleAction=ignore" to /etc/systemd/logind.conf, I'm unable to reproduce the problem on the system.
I don't remember restarting systemd or anything else. Yet, the problem appears to be gone.

[David Oftedal (rounin)]

Unfortunately, it happened again. Editing logind.conf did not help.

[Theo Linkspfeifer (lastonestanding)]

When does the system enter the sleep state? After a certain amount of time without user activity?

[Launchpad Janitor (janitor)]

[Expired for xfce4-power-manager (Ubuntu) because there has been no activity for 60 days.]