I'm looking for a reliable way to log when my laptop is:
- powered down
- boots up
- goes to sleep
- wakes up
Currently I'm checking both the systemd-suspend and tlp systemctl services, but these don't really feel very robust, and I don't have TLP installed on all my machines.
Is there an easier way to do this, or a better systemctl unit that logs all the power states of my machine. Preferably laptop agnostic?
Laptop snippet so far:
journalctl --since -9days -u systemd-suspend -u tlp \
| grep -P "Finish|Start|Stopped" | sed '/.*Finished TLP.*/d;
s|Starting TLP.*|╭╴System Boot |;
s|Starting System Suspend.*|┤ · Sleep |;
s|Finished System Suspend.*|├ · Wake |;
s|Stopped TLP.*|╰╴Power Off |;' \
| sed -r 's|^(.*:[0-9]+)+:[0-9]+.*:(.*)| \1 \2 |'
It can report just before it's shutting down. Hell, if I run
shutdown -P 20:00 "OH WE GOIN DOWN"you bet your ass that I will get a wall message on every tty with that message at 8pm.I'm just wondering how to reliably capture the shutdown messages without having to scan the entire system log. I just assumed that there would be one service file that I would have to check for these types of events, but apparently the best bet I have is the TLP service daemon which typically only runs on laptops.
I think last has it, too, but I'm not sure.
Very good shout on
last-- I see the boot up and power down states very nicely described there. Sadly, no hibernate info is there, so I would still need to check journalctl for that info