Lock Screen on Laptop Lid Close

This used to work on one of my old laptops, but ever since I started buying Dell laptops the screen wouldn’t lock when I closed the laptop lid.

To have your screen be locked when you close your lid, open a Termina and run gconf-editor

/apps

/gnome-power-manager

/lock

[x] blank_screen

Make sure that ‘Blank Screen’ is selected in Power Management Properties.

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