Suspend Laptop When Lid Closed Ubuntu 12.04 LTS in Lenovo Z500

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I guess this is a bug. Although suspend is set in Power settings, it doesn’t suspend the laptop when its lid is closed.

To solve it, I’ve found a workaround on web. Here is how you implement it:

Generate folder if it’s not present:

sudo mkdir /etc/acpi/local

Set its permissions:

sudo chmod 755 /etc/acpi/local

Generate the script:

sudo gedit /etc/acpi/local/

Copy-paste the following:


grep -q closed /proc/acpi/button/lid/*/state
if [ $? = 0 ]

Make script executable

sudo chmod +x /etc/acpi/local/

After these operations, you should be able to suspend it when lid is closed and awaken back when it’s open. Note: it doesn’t show lock screen.


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