How to get login screen in Ubuntu?
Press Ctrl + Alt + F7 to get back to the login screen which should now look different. Does logging in work? If it does, your problem is solved! If it doesn't, go back to the fullscreen terminal (again, Ctrl + Alt + F2 ) and run sudo dpkg-reconfigure lightdm to set LightDM as you login manager again.
How to open terminal on login screen Ubuntu?
Switch to a Terminal
At the login screen, press Ctrl + Alt + F5 to switch to a TTY. You'll be prompted to enter a login. At the login prompt, enter your username and press Enter .
What is the default Ubuntu login?
First boot (Username/Password)
The login username is "ubuntu", password is "ubuntu". You will be asked to change the password on first login.