Basically the same question as asked in
I.e., with my recently installed Lubuntu (18.04.2), the system does not suspend after closing lid of my laptop.
sudo systemctl suspend cam make my laptop suspend, so I believe it is Lubuntu’s configuration issue.
I tried fixing the problem myself by following
i.e., uncomment the line
$ grep HandleLidSwitch= /etc/systemd/logind.conf HandleLidSwitch=suspend
and I’ve restart the Systemd
systemd-logind.service service as well.
But my laptop still doesn’t suspend after closing lid.
Please help. thx