3

I just upgraded to Ubuntu 18.04.2 LTS and figured out that there is no option in settings to change the lid closing behavior.

I tried the command line method from the answer here:

HandleLidSwitch=ignore

worked successfully. But, this thing doesn't turn off the screen like it happens in Windows.

I want to keep the System running, but turn the screen off when the lid is closed.

Joshua Besneatte
  • 4,773
  • 5
  • 23
  • 42
Tarun Kumar
  • 131

1 Answers1

2

HandleLidSwitch=ignore does just that: it ignores lid behavior. So the screen will not turn off if you use this method.

The following answer is adapted from this source

You will need to write a script:

In a terminal, create the file /etc/acpi/lid.sh, make it executable, and instruct your system to reference this file for the behavior of lid "events":

sudo touch /etc/acpi/lid.sh
sudo chmod +x /etc/acpi/lid.sh
sudo echo 'event=button/lid.*' | tee --append /etc/acpi/events/lm_lid
sudo echo 'action=/etc/acpi/lid.sh' | tee --append /etc/acpi/events/lm_lid

then, open the script for editing:

sudo nano /etc/acpi/lid.sh

The contents of this file should be: (replace your_username with your username)

#!/bin/bash
USER=your_username
grep -q close /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
  su -c  "sleep 1 && xset -display :0.0 dpms force off" - $USER
fi
grep -q open /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
  su -c  "xset -display :0 dpms force on &> /tmp/screen.lid" - $USER
fi

CTRL + O to save and CTRL + X to exit.

Reboot your system.

This may not work with multiple users.

Nmath
  • 12,333
  • In Ubuntu 22.10 /etc/acpi and /etc/acpi/events do not exist. If I create them myself, should this work or it is moved somewhere else? Thanks. – conualfy Oct 26 '22 at 13:32
  • @conualfy you should install the acpi daemon to listen the events first. sudo apt install acpid – Can Geliş Dec 11 '22 at 09:59