investigate unexpected reboot

view story

https://bbs.archlinux.org – Hi communityWhen I switched on my screen this morning I found a new slim login screen instead of the previous x session I left yesterday evening with all my applications running.A quick view at journalctl and let's see a system reboot @08:48 this morning :May 20 00:03:09 I5 slim[308]: NOTE: child process received `Goodbye', closing down May 20 01:09:12 I5 mate-screensaver-dialog[3793]: gkr-pam: unlocked login keyring -- Reboot -- May 20 08:48:07 I5 systemd-journal[130]: Allowing runtime journal files to grow to 371.7M. May 20 08:48:07 I5 kernel: Initializing cgroup subsys cpusetSlim (HowTos)