I tried different things: edit /etc/pam.d/common-password and /usr/share/pam-configs/unix, none worked, account remains disabled, I can't set the password, the "Change" button remains grayed :)
I tried different things: edit /etc/pam.d/common-password and /usr/share/pam-configs/unix, none worked, account remains disabled, I can't set the password, the "Change" button remains grayed :)
Just open terminal
Type
Then type your old password then new password.
Retry
And done
You may have simply not unlocked the user accounts menu.
On the top right of the user accounts menu is an Unlock button.
Click it and enter your password when asked (or the admin password if it is different).
You will then be able to change the password, create accounts or set auto login.