![](https://infosec.pub/pictrs/image/18f7fca6-a3d6-4bc7-8d63-9fd5d7a11c58.jpeg)
![](https://lemmy.ml/pictrs/image/q98XK4sKtw.png)
640x480 sounds like the typical fallback if there is no EDID/DDC data and the card is going ahead with the most bare-minimum signal that any screen should accept. Maybe there’s dumb state sitting around in the video card. Maybe, because everything is now so smart that it’s stupid, the monitor itself is the one remembering weird state. Maybe it doesn’t like the text-mode flip or a DPMS command at the end of an update-reboot cycle, so its EDID responder loses the plot. Who the fuck knows what goes on in all this garbage firmware?
It’s one of those Windows features that I would accidentally click once, and then immediately go hunting for how to disable it.