Black screen at login unless I unplug a screen

  • Asus Prime a x299
  • Intel i7 9800x
  • Amd w5500 gpu
  • Big Sur 11.2.3
  • OpenCore 0.6.7

I installed via the guide. And I have a working system. Except for one annoying issue.

I've two monitors hooked up via displayport. Boot messages show up fine. But when I get to the login screen I get black screens. The computer seems to be working aside from the video output. What resolves it is if I unplug one screen and then replug it in. That gets the monitor output working and all is well.

But this is annoying to have to do every time I start my computer. Is there any fix to this?

submitted by /u/cals11
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