I have an HP Laptop 15-dy1751ms. If it sleeps for a while, (I don't know exactly how long) the screen will go blank if the cursor is hovering on different parts of the screen. (not caused by clicking) I noticed that it's usually if it's over an 'interactive' part of the screen, such as the password box on the lock screen. Restarting the computer temporarily fixes the issue, win+ctrl+shift+b does not.
EDIT: I updated my BIOS, now device manager gives me this for Firmware:
This device cannot start. (Code 10)
Indicates a revision number encountered or specified is not one known by the service.
It may be a more recent revision than the service is aware of.