I have a fresh install of Linux Mint (and no updates installed due to the repos being down). A tried Linux Mint earlier and had trouble with the screen resolution, but then I fgured out Linux Mint couldn't ID my display and only offered low resolutions because of that. I used displayconfic to set my display and that way got the screen resolution window give me more options on the resolution.
However, I selected a resolution that my display can't use, and now it's literally flashing there next to me (I'm using my laptop to write this message) saying "Not supported". I waited a little while to see if Linux Mint would revert back to the old setting if I didn't confirm the change, but no luck. I then remembered that it did ask for a confirmation last time, however, and pressed enter. No change. I thought the first time I changed the resolution I selected "Keep these settings" but it didn't return to the old configuration.
Well, in any case, I really wouldn't want to reinstall Linux Mint (again) just for this (not that it would take very long, though). I haven't touched anyting since I pressed enter. Can anyone give me advice on how to blindly change the resolution from where I am, i.e. give me instructions which keys to press on my keyboard? My display shows me nothing but the error message, but I know I'm exactly where I described: one enter press from when I changed the resolution.
I'd appreciate a quick response as I have to keep the computer running.