Macbook Pro stuck on password sign in I can't log on to my 2011 MacBook Pro. It boots up ok with the chime, then goes to the Apple logo screen, then to the &quot;enter password&quot; screen. There I'm completely stuck as can't get past the log in screen showing my picture and it asking me to put in the password.
It &quot; shakes its head &quot; when I input the password. After a few experiences of this I reset the password using Apple ID but it still doesn't recognise the new password.  Tried rebooting using Cmd R and also tried Cmd S.
If I reboot with Cmd-R it goes straight to Apple logo page then sign in page and the box for the password fills up with dots as if I were typing in a very long password
Just to make this into an actual answer…
It seems very likely, after your last comment which I edited into the question body for you, that you have a stuck key which is auto-repeating as you are trying to type.
I think you may need a repair shop.