Standby option missing

Problem
There is no option for Standby (power management) on my laptop.

Solution
The Standby option is disabled by default. To enable it:
 * Go to Menu > System > Configuration > Control Center.
 * Navigate to Power Control > Laptop Battery > ACPI Config. If you are not logged in as "root", click on the button "Start Helper Application". Enter the password for root.
 * Then, check the options "Enable Standby" and "Enable Suspend".
 * Accordingly, modify the options in other tabs too, if needed, to your choice.