System sleep #

PCs have long had a tortured relationship with suspend and hibernation. It seems to be very difficult for manufacturers to consistently get these right, although many do. So be aware that suspend and hibernate may not work on your particular system.

But they are enabled by default on new installations.

Toggle suspend #

You toggle suspend under Setup > System Sleep > Enable/Disable Suspend. That just reveals/hides the option under System (or Super + Esc), and then you can see if it works consistently on your system. If not, you can turn it off again using Setup > System Sleep > Disable Suspend.

Toggle hibernation #

You toggle hibernation under Setup > System Sleep > Enable/Disable Hibernation. Hibernation creates a /swap subvolume on your boot drive the size of our physical RAM allocation, so make sure you have plenty of room to spare. On a 32GB machine, you'll always need 32GB+ free for this volume.

When enabled, you'll see the hibernate option under System (or Super + Esc), and then you can see if it works consistently on your system. If not, you can turn it off again using Setup > System Sleep > Disable Hibernate.