How to avoid turning off Ubuntu Laptop with the lid closed

Summary

• My laptops running Debian based distributions (Kubuntu and Peppermint OS) get suspended when I closed the lid after logging out ( = I guess the setting for KDE gets disregarded).

Solution

/etc/systemd/logind.conf
======
HandleLidSwitch=ignore

sudo systemctl restart systemd-logind

Reference

• How can I tell Ubuntu to do nothing when I close my laptop lid?