No video output on DisplayPorts on RX 5700 XT graphics card

I am not sure if my issue is a Driver or Windows 11 issue.

I have an RX 5700 XT graphics card, and it has been working well for just over a year. The main monitor is connected to the card via DisplayPort, and the second monitor via HDMI. Last week, both of my monitors went black. No error and no monitor disconnect messages on the monitors. I can see the power LEDs on for both monitors.

I rebooted the computer, and the BIOS splash screen popped up on the main monitor. The Windows login screen flashes for a second or two, then both screens go black.

Through trial and error, I found that unplugging the main monitor from the DisplayPort made the second monitor work. If I plug in the main monitor, the second monitor on HDMI still works, but the main monitor stays black.

I rolled the driver back to Windows Basic Driver, and the main monitor on the DisplayPort worked. The main monitor stopped working as soon as any AMD driver was installed. I tried different drivers from 2023, 2024, and 2025.

I put in an old RX 570 graphics card, and it had the same issue: only the monitor on HDMI worked. I noticed there was an optional AMD drive and installed it. After that, the main monitor worked again. 

I put the RX 5700 XT back in. The main monitor went black again, and there was no optional Windows AMD driver update. I have booted into safe mode and installed the driver through DDU, but that also did not work.

   Processors make and model: AMD Ryzen 5 1600 6 core ~3.4GHz

    Graphics make and model: Radeon RX 5700 XT 8GB

    Motherboard and BIOS version: ASUSTek ROG STRIX B450-F BIOS 3003

    Operating system and version: Windows 11 Pro 64-bit (10.0, Build 26200)

    Affected driver version(s): 32.0.21030.2001

    Display type and connectivity: Dell S3222DGW DisplayPort

    System memory (RAM) make and model: 32GB RAM