So it turns out that IODisplayConnect is not supported on Apple's M1 systems.
Look for IODPDevice then iterate as needed.
alanfromtewksbury
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
I am now going to answer my own question:
According to Apple Developer Support, IODisplayConnect is no longer supported on Apple M1 systems.
In order for me to get to the display information I had to look for IODPDevice to iterate on. Then get properties from the child service of the IODPDevice.
Be aware that the IODPDevice service does not contain the same data that IODisplayConnect did.