I cannot log in to my laptop when the screen is locked, both automatically or manually. When i type my password from lock screen it says, password incorrect.
I have auto-login enabled. I can use my system properly in the terminal, pamac, etc with the same password without issues.
Even tty2 not working when the screen is locked, it says "Authentication failure"
This happened suddenly and I am not sure what caused this.
Can anyone help?