Minutes ago, I heard the adaptor connect/disconnect sound repeatedly play on my Dell Inspirion 15. (Windows 11 Home, Build 10.0.26200 Build 26200) My additional monitor had shut off.
I attempted to quickly test to see if all ports on that side were off by opening a Godot project to test my USB controller real quick, and it said my OpenGL 3.3 and DirectX drivers were missing.
While googling to see what could cause all of this, my display settings switched around rapidly, eventually settling on 175% display size, and I *think* no other changes from baseline. Switching back to 100% made everything look the relative size it would on the other monitor rather than my laptop screen. Doing a reboot changed nothing.
While researching more (and opening Reddit to write this post), the monitor began working again. What I've looked at thus far has indicated something may be weird with my Microsoft Basic Display Adapter. It's "fixed" now, but I'm nervous it could recur, and I want to know what could have caused this and what to do to prevent it in the future.