I have the same problem on a fresh installed 18.10 for 32-bits, but only if external monitor is connected. Indeed this is a well known peoblem at internet.
sudo journalctl -b -u systemd-logind with debugging on (systemd.log-level=debug) without external monitor shows succeeding suspend: Nov 29 16:56:04 Gert2 systemd-logind[438]: Lid closed Nov 29 16:56:04 Gert2 systemd-logind[438]: device-enumerator: scan all dirs Nov 29 16:56:04 Gert2 systemd-logind[438]: device-enumerator: scanning /sys/bus Nov 29 16:56:04 Gert2 systemd-logind[438]: device-enumerator: scanning /sys/class Nov 29 16:56:04 Gert2 systemd-logind[438]: Failed to open configuration file '/etc/systemd/sleep.conf': No such file or directory Nov 29 16:56:04 Gert2 systemd-logind[438]: Suspending... sudo journalctl -b -u systemd-logind with debugging on (systemd.log-level=debug) with connected external monitor shows refusing suspend: Nov 29 15:05:58 Gert2 systemd-logind[426]: Lid closed. Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scan all dirs Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/bus Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/class Nov 29 15:05:58 Gert2 systemd-logind[426]: External (1) displays connected. Nov 29 15:05:58 Gert2 systemd-logind[426]: Refusing operation, as it is turned off. Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scan all dirs Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/bus Nov 29 15:05:58 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/class Nov 29 15:05:58 Gert2 systemd-logind[426]: External (1) displays connected. Nov 29 15:05:58 Gert2 systemd-logind[426]: Refusing operation, as it is turned off. Nov 29 15:05:59 Gert2 systemd-logind[426]: Got message type=method_call sender=:1.238 destination=:1.3 path=/org/freedesktop/login1/session/_32 interface=org.freedesktop.login1.Session member=ReleaseDevice cookie=154 reply_cookie=0 signature=uu error-name=n/a error-message=n/a Nov 29 15:05:59 Gert2 systemd-logind[426]: Sent message type=signal sender=n/a destination=:1.238 path=/org/freedesktop/login1/session/_32 interface=org.freedesktop.login1.Session member=PauseDevice cookie=227 reply_cookie=0 signature=uus error-name=n/a error-message=n/a Nov 29 15:05:59 Gert2 systemd[1]: systemd-logind.service: Got notification message from PID 426 (FDSTOREREMOVE=1, FDNAME=session-2-device-13-71) Nov 29 15:05:59 Gert2 systemd[1]: systemd-logind.service: Got explicit request to remove fd 174 (session-2-device-13-71), closing. Nov 29 15:05:59 Gert2 systemd-logind[426]: Sent message type=method_return sender=n/a destination=:1.238 path=n/a interface=n/a member=n/a cookie=228 reply_cookie=154 signature=n/a error-name=n/a error-message=n/a Nov 29 15:05:59 Gert2 systemd-logind[426]: device-enumerator: scan all dirs Nov 29 15:05:59 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/bus Nov 29 15:05:59 Gert2 systemd-logind[426]: device-enumerator: scanning /sys/class Nov 29 15:05:59 Gert2 systemd-logind[426]: External (1) displays connected. Nov 29 15:05:59 Gert2 systemd-logind[426]: Refusing operation, as it is turned off. Nov 29 15:06:10 Gert2 systemd-logind[426]: Lid opened. The command systemd-inhibit --list shows next entry as soon as an external monitor is attached to the laptop. Who: gert (UID 1000/gert, PID 2342/gsd-power) What: handle-lid-switch Why: Multiple displays attached Mode: block So program gsd-power is responsible for inhibiting the handling of the lid-switch. The suspend-action will not occcur. This is not configurable and I think that is ridiculous. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799038 Title: Ubuntu 18.10 does not suspend on lid close To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1799038/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs