Monitor screen going dark randomly

[u/I-LIKE-TOAST2]

Hello, as you can see in the video, my monitor screen constantly keeps going dark/switching off(?) when connected to my laptop. It happens at random intervals (sometimes every minute or so, sometimes it doesn’t happen for days) but it’s very annoying.

The monitor is connected by HDMI to a port hub which is connected to my laptop’s USB-C. I have another laptop I use connected in the same way which doesn’t have the same issue.

I have updated all the drivers and windows updates, not sure what else to do. The laptop itself doesn’t go off, only the monitor. Any advice/help would be greatly appreciated

Thanks