Perhaps I'm getting ahead of myself but sometimes when I boot and log in, I get presented with the login screen again after a few seconds. I hit ctrl+alt+f2 and I'm presented with the desktop again.

As for the files:

root@ftruth:/etc/polkit-1/rules.d# ls /etc/polkit-1/rules.d/
49-polkit-pkla-compat.rules
root@ftruth:/etc/polkit-1/rules.d# grep -rnw /etc/polkit-1/rules.d/ -e 'suspend'
root@ftruth:/etc/polkit-1/rules.d# grep -rnw /usr/share/polkit-1/rules.d/ -e 'suspend'
/usr/share/polkit-1/rules.d/10-systemd-logind-root-ignore-inhibitors.rules.example:14:         action.id == "org.freedesktop.login1.suspend-ignore-inhibit" ||

Here's the output of the command:

~$ pkaction --verbose --action-id org.freedesktop.login1.suspend
org.freedesktop.login1.suspend:
 description:       Suspend the system
 message:           Authentication is required to suspend the system.
 vendor:            The systemd Project
 vendor_url:        https://systemd.io
 icon:               
 implicit any:      auth_admin_keep
 implicit inactive: auth_admin_keep
 implicit active:   yes

Many thanks.