Intel Ultra 7 265K: Graphics does not work, strange artifacts

[polovest (John)]

I have an Intel Ultra 7 265K (no graphics card installed) with an ASUS B860-I mainboard and newest BIOS. While Windows 11 works, this is I get in Fedora 42 KDE:

By moving the terminal I could enter some commands to check what driver is running:

I also changed the cables, but no luck. Does anyone have an idea?

[polovest (John)]

To my surprise it turns out that XMP was the reason. I had this enabled:

Then I disabled it and now all looks normal. Seems Intels iGPU is not so good