On another computer, Spacebar prints outorCode:^Z0,6in command line, even in Safe mode. There are also beeps that accompany (maybe ctrl codes?). When this happens in regular session, it puts the computer to sleep (except in Safe mode). Also, Esc key prints outCode:^Z0,61*6and this also comes with beeps as though other, non-printing characters are sent.Code:w`x1tn5v
This behavior happens as early as a password field in Setup and the password field at login. It does not shut down the computer in Setup, but it does in the login password.