Screen Flickering while using Powerpoint or PDF

I have a problem with my Razer blade 15 2020 Laptop, continuously when I am working on it, the screen flickers and the computer get suspended, preventing any activity from being carried out, this mainly occurs when I do not have an external monitor connected to it. At the time of writing this message and within the past hour, they have been approximately 12 times, I don't know what to do anymore. I have the latest Nvidia drivers, and I dont have any windows update message. It only happens while Im working (not gaming) without an external monitor