Question My colors disappeared after a screen blackout

[larbas]

I was playing and out of nowhere my PC turned off and the screen turned on, but the image had faded colors. I tried to increase the colors through the video card but it doesn't increase from what it already is. It's not the monitor that has the problem because I tested it on my brother's PC and the HDMI output is working normally. The colors are only on the DP that are like this. What could it be?

GTX 1060 6GB