make lid close do nothing

ubuntu lid close

refer: http://askubuntu.com/questions/15520/how-can-i-tell-ubuntu-to-do-nothing-when-i-close-my-laptop-lid

accepted
For 13.10 - 16.04:

To make Ubuntu do nothing when laptop lid is closed:

Open the /etc/systemd/logind.conf file in a text editor as root, for example,
sudo -H gedit /etc/systemd/logind.conf
Add a line HandleLidSwitch=ignore (make sure it's not commented out!),
Restart the systemd daemon with this command:

sudo restart systemd-logind
or, from 15.04 onwards:
sudo service systemd-logind restart
See also: Ubuntu Server 13.10 now goes to sleep when closing laptop lid