There was another user yesterday/today with touchpad issues, which might be related. I don’t know whether the issue was resolved, but if you search the forum for the user jackdinn’s recent posts, you might find something useful.
As you will see there are many threads with similar black screen issues. The following article should help to troubleshoot your issue.
That’s all I can offer. I’ll chime in again if I think of anything useful.
Cheers.