Suspend on LID close
This article explains how to make your laptop go to Suspend when closing the LID.
This can be done via acpid with a hook in /etc/acpi/LID/00000080:
a) with pm-utils:
apk add pm-utils
Contents of /etc/acpi/LID/00000080
#!/bin/sh
exec pm-suspend
b) with this raw variant:
Contents of /etc/acpi/LID/00000080
#!/bin/sh
echo mem > /sys/power/state
Make the hook executable:
chmod +x /etc/acpi/LID/00000080
And that should be it. Make sure that the acpid daemon is running:
/etc/init.d/acpid start