X Session turns black with a mouse cursor after Suspend or LightDM lock (NVIDIA)

This issue appears across both i3 and xfce4, so I assume it is something to do with X11. I am using the latest proprietary drivers for NVIDIA.

In i3, after suspending and resuming I am shown a black screen with a functional cursor. Opening an application with a key bind returns me to my actual desktop.
On xfce, suspending and resuming takes me to the LightDM lock screen fine. When I log in, the same issue appears. My screen turns black with a functional cursor. I can ‘wake’ it by forcing a new window to open with a key bind.

Any thoughts as to why this is happening or how to fix it?

provide full system info:
inxi -zav7
and:
mhwd -l -li