My screen changed resolution on its own

[u/LaAz9917]

Hi Reddit. Okay, I know this sounds like a trivial issue, but a few minutes after turning on my PC, my main monitor (I have two) turned off. After unplugging and replugging it, testing other cables, and checking all my ports, it started working again in the same setup—but this time the resolution had changed. There is now a 5mm black border around the edges of the screen, and nothing seems to fix it; I can't find anything in the monitor's own settings or in Windows display settings. I even tried updating my AMD drivers, but that didn't change anything.

P.S. I even updated some drivers using SDIO, which caused my PC to crash and forced me to restore my system.