ubuntu@ubuntu:~$ sudo systemctl status upower.service
● upower.service - Daemon for power management
   Loaded: loaded (/lib/systemd/system/upower.service; disabled; vendor preset:
   Active: active (running) since Mon 2020-05-04 18:51:11 UTC; 27min ago
     Docs: man:upowerd(8)
 Main PID: 2040 (upowerd)
    Tasks: 3 (limit: 4915)
   CGroup: /system.slice/upower.service
           └─2040 /usr/lib/upower/upowerd

May 04 18:51:30 ubuntu upowerd[2040]: treating change event as add on /sys/devic
May 04 18:54:12 ubuntu upowerd[2040]: unhandled action 'unbind' on /sys/devices/
May 04 18:54:13 ubuntu upowerd[2040]: unhandled action 'bind' on /sys/devices/pc
May 04 18:54:13 ubuntu upowerd[2040]: unhandled action 'bind' on /sys/devices/pc
May 04 18:55:20 ubuntu upowerd[2040]: unhandled action 'unbind' on /sys/devices/
May 04 18:55:20 ubuntu upowerd[2040]: unhandled action 'unbind' on /sys/devices/
May 04 18:55:21 ubuntu upowerd[2040]: unhandled action 'bind' on /sys/devices/pc
May 04 18:55:21 ubuntu upowerd[2040]: unhandled action 'bind' on /sys/devices/pc
May 04 18:55:21 ubuntu upowerd[2040]: unhandled action 'bind' on /sys/devices/pc
May 04 18:56:35 ubuntu upowerd[2040]: treating change event as add on /sys/devic
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