When using DP on my brand new monitor, the screen will flicker. It seems as if it is reconnecting to the source, since (as you can see in the video below) every time this happens the DP logo will appear in the top right corner. The number in the top right corner displays my refresh rate (a setting on the monitor) and the numbers in the bottom right displays fps etc. This tends to happen more when playing games, but it also happens when I'm for example on the desktop or simply typing this message in Chrome. I however haven't been able to reproduce the error with either HDMI or DP 60 Hz.
My computer is also brand new with the following specs. I have downloaded all the newest drivers. The DP cable I'm using came with the monitor and is connected from my graphics card to the monitor (1m long cord).
ASUS GeForce RTX 2080 SUPER DUAL EVO OC V2
AMD Ryzen 5 3600
HyperX Fury DDR4 2666MHz 16GB
Kingston A2000 500GB NVMe M.2 SSD
Corsair Vengeance 750M, 750W PSU
ASUS ROG Strix B450-F GAMING, Socket-AM4
Windows 10 64 bit
https://www.youtube.com/watch?v=2SF7HyCYVCc&feature=youtu.be