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How to disable lid trigger on ubuntu

Context​

It's bothering to keep a laptop-server opened just to not put the server to sleep...

How to​

For 13.10 - 24.04:

To disable Ubuntu doing anything closing the laptop lid:

  • Open the /etc/systemd/logind.conf file in a text editor as root
sudo nano /etc/systemd/logind.conf
  • Uncomment (if line starts with #) and change HandleLidSwitch to ignore (can be {lock,ignore,poweroff,hibernate})
HandleLidSwitch=ignore
  • Restart the systemd daemon (be aware that this will log you off) with this command:
sudo systemctl restart systemd-logind

Ref​