Ctrl + Alt + Down Arrow (to flip upside down) Ctrl + Alt + Left/Right Arrow (for portrait modes)
But that doesn't mean you have to live without one. The Ctrl + Alt + Arrow muscle memory you crave is not lost; it’s just been misattributed for a decade. By spending five minutes with iRotate, AutoHotkey, or a portable CLI tool, you can restore that functionality permanently. nvidia rotate screen hotkey
Here is the uncomfortable truth: It never was. Ctrl + Alt + Down Arrow (to flip