Purchased a new monitor and it randomly turns off both screen for a few seconds

I had/have 2 monitors and recently replaced one of them becase one died, well with the new monitor im going crazy cause it randomly turns both screen black for a seconds and it has started since i got this new one.

I have tried reinstalling nvidia drivers, changing the displayport cable (and changing the slot that its connect to in my graphics card), change the Hz on both monitors so that they are the same.

It does not happen while using a speciric program, cause it has happened with LoL, while playing a steam game and while watching a series.

The new monitor is an Samsung Odyssey Oled G6, i have it connected to my main PC tower (displayport) + work laptoo (hdmi).

I dont know what else to try any help would be very much appreciated. (sorry english its not my main language)