It's again waking with a black screen in which only mouse and Fn+Ctrl+Alt+F?? keys work. I've attached the jountalctl -b0 output from prior to reboot, probably more relevant than grabbing the actual reboot. Mär 23 07:09:16 aletheia kernel: Restarting tasks ... done. Mär 23 07:09:16 aletheia systemd-logind[1556]: Lid opened. Mär 23 07:09:16 aletheia Tor[1683]: Tor has been idle for 26589 seconds; assuming established circuits no longer work. Mär 23 07:09:16 aletheia rtkit-daemon[1766]: The canary thread is apparently starving. Taking action. Mär 23 07:09:16 aletheia rtkit-daemon[1766]: Demoting known real-time threads. Mär 23 07:09:16 aletheia rtkit-daemon[1766]: Demoted 0 threads. Mär 23 07:09:16 aletheia Tor[1683]: Heartbeat: Tor's uptime is 0:00 hours, with 0 circuits open. I've sent 0 kB and received 0 kB. Mär 23 07:09:16 aletheia systemd[1]: NetworkManager-dispatcher.service: Succeeded. Mär 23 07:09:16 aletheia kernel: mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_component_ops [i915]) Mär 23 07:09:16 aletheia kernel: thermal thermal_zone6: failed to read out thermal zone (-61) Mär 23 07:09:16 aletheia systemd[1]: Starting Daily apt download activities... Mär 23 07:09:16 aletheia systemd[1]: Starting Refresh fwupd metadata and update motd... Mär 23 07:09:16 aletheia systemd[1]: Starting Message of the Day... Mär 23 07:09:16 aletheia systemd[1]: Starting Ubuntu Advantage Timer for running repeated jobs... Mär 23 07:09:16 aletheia systemd[1]: motd-news.service: Succeeded. Mär 23 07:09:16 aletheia systemd[1]: Finished Message of the Day. Mär 23 07:09:16 aletheia upowerd[1864]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3 Mär 23 07:09:16 aletheia upowerd[1864]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3 Mär 23 07:09:16 aletheia systemd-sleep[34855]: System resumed. Mär 23 07:09:16 aletheia kernel: PM: suspend exit Mär 23 07:09:16 aletheia gsd-power[2839]: Error calling suspend action: GDBus.Error:org.freedesktop.login1.OperationInProgress: There's already a shutdown or sleep operation in progress Mär 23 07:09:16 aletheia fwupd[3148]: 06:09:16:0867 FuEngine failed to record HSI attributes: failed to get historical attr: json-glib version too old Mär 23 07:09:16 aletheia systemd[1]: systemd-suspend.service: Succeeded. Mär 23 07:09:16 aletheia systemd[1]: Finished Suspend. We compare this semi-locked gnome-shell with a working unsleep from a brief lid close: Mär 23 07:42:19 aletheia kernel: Restarting tasks ... Mär 23 07:42:19 aletheia kernel: mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_component_ops [i915]) Mär 23 07:42:19 aletheia systemd-logind[1529]: Lid opened. Mär 23 07:42:19 aletheia kernel: done. Mär 23 07:42:19 aletheia upowerd[1838]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3 Mär 23 07:42:19 aletheia kernel: thermal thermal_zone6: failed to read out thermal zone (-61) Mär 23 07:42:19 aletheia upowerd[1838]: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3 Mär 23 07:09:16 aletheia systemd-sleep[34855]: System resumed. Mär 23 07:42:19 aletheia kernel: PM: suspend exit Mär 23 07:42:19 aletheia systemd[1]: systemd-suspend.service: Succeeded. Mär 23 07:42:19 aletheia systemd[1]: Finished Suspend. I wind up with gnome-shell being stuck when "kernel: done" never appears, the "upowerd" line appears twice, and we get the error: Mär 23 07:09:16 aletheia gsd-power[2839]: Error calling suspend action: GDBus.Error:org.freedesktop.login1.OperationInProgress: There's already a shutdown or sleep operation in progress I've maybe some early unsleep phase not finishing correctly, which then convinces gsd-power believing that sleep continues? * Irrelevant looking differences: The mei_hdcp comes before the lid opened line. Activities like tor and rt-kit-daemon have not been asleep long enough to be doing restart work.