When I try to use input.getbuttondown or input.getkeydown, and the non down versions, no input is logged at all! I have no scripts named Input, InputManager or anything else that may set it off, and the same thing goes for objects, I have no clue what could be the issue.
Hey. Be sure that you attached script to any GameObject on the scene (even on the camera). And you can use this script:
void Update() {
if (Input.GetKeyDown(KeyCode.Space))
Debug.Log("space key was pressed");
}