Question Weird colours distortion in monitor MAG27C

[imChill]

I have had this problem for a while now, as picture below. When I turn my PC on, it'll show these sort of distorted colours starting from the bottom to the middle, sometimes the full, screen. They usually disappear after around 40 seconds from when the PC I turned on, annoying nevertheless.

 

[punkncat]

Does this monitor have a mode where it will show a colored screen even when not plugged to a PC/Source? For example, can you bring up a menu that would show in the distorted area?

If not, do you have another PC you can connect it to and also a different cable?

 

[imChill]

Does this monitor have a mode where it will show a colored screen even when not plugged to a PC/Source? For example, can you bring up a menu that would show in the distorted area?

If not, do you have another PC you can connect it to and also a different cable?

No, it doesn't turn on if it's not connected.

Sadly I have neither, ie, another DP cable nor a PC that has a DP port. I only have one DP cable and a laptop with HDMI port.

However, I'm currently in the process of building a new PC having ordered the parts, I guess I will wait till then to see.

Thanks!