Unable to log on to tty1 ~ On the VM ~ 6 Problems

Unable to log on to tty1 ~ On the VM ~ 6. You cannot switch to another logon mode. If this is the case, the Logon account password is Incorrect. The following information is displayed after you enter the account password: Login Incorrect (Incorrect account or password) however, the entered account and password are correct, so it may be caused by a keyboard layout problem. Try inputting the row of numbers below F1 F2 without a numeric keypad, and then enter the password. I will solve it in this way ..