Problem with image reproduction on the monitor via PC?

lu
- in Xbox
3

I have just changed my PC a bit. I had to unplug all cables and put them back in again.
However, there's now a problem. My monitor no longer shows an image from my PC. But since I have an Xbox, I have already checked whether the monitor is broken. However, the picture works as usual in both HDMI sockets. HDMI cable and monitor therefore not broken. It must be the PC, but it has always run flawlessly without any problems. You can also turn it on, only the picture is missing.

Do any of you know what it could be or what I could do?

ma

Have you chosen the right connection on the PC? (Connection to graphics card)

lu

I just took the normal HDMI connection, of which I only have one on the PC.

ma

Shut down the PC completely. Unplug it and restart it.