I uninstalled all drivers for my PC, using Display Driver Uninstaller, and updated to the latest Adrenaline Software update 24.3.1 for the 7900XTX at the installation time. My monitor is connected to the DisplayPort on my GPU, but it had no display out. The monitor kept sleeping and waking. Tested integrated graphics on 7700x. Not working. Changed to HDMI on the motherboard and it worked. I tested it on GPU, and it worked. So the 3 DisplayPorts on the GPU don't work, and neither does the one on the motherboard.