You might try using xrandr outside the GUI, via a TYY, the procedure for which is outlined in this unrelated article. Then reboot.
Being that I don’t use i3wm, I can’t offer anything overly constructive. I’m also not aware of the current status of Wayland in i3wm, however, that might be worth investigating.
I’ll chime in again if I think of anything useful. Cheers.