mjhjmtu

I have a clean Debian Stretch installation. It used to be the case that after booting I would end up on tty1 with a login prompt, and after logging X is started. I wanted to automate the logging in (because I'm the only user and my disk is encrypted already) so I followed the exact instructions given here:

• In /etc/systemd/logind.conf, changed #NAutoVTs=6 to NAutoVTs=1
  


• 
  

  Used systemctl edit getty@tty1 and added (where username is my username):

  
  
  

  [Service]
  ExecStart=
  ExecStart=-/sbin/agetty --autologin username --noclear %I 38400 linux
  

  
  


• Enabled the service: systemctl enable getty@tty1.service
  

After rebooting, the login prompt was gone from tty1 and nothing else happened. It still showed the boot log. On tty2-5, only a cursor appeared, no login prompt as before. Luckily, tty6 was still available to recover the system. So I did:

• Disable the service: systemctl disable getty@tty1.service
  


• Undid the change to /etc/systemd/logind.conf
  

Now, I can use all ttys except tty1 to login as normally, but somehow tty1 remains damaged. How can I repair this as well?

You should enable the getty@tty1.service again:

systemctl enable getty@tty1.service