Ubuntu keeps looping back to login screen
2850
Ubuntu gets stuck in a login loop
47414
Can't login even with password Linux ubuntu
114261
program not starting on login as it requires UAC prompt
7014
I can't access the login screen in Lubuntu 16.04 LTS (2)
132645
What is a "Systemd login session"?
46501
How do I enable auto-login in Mint 18?
19348
Login screen not ubuntu's; it's Gnome's
136575
Problem with logging out
79628
Login screen appears in a much older style
77181
How do I log out of `sudo su`?
61493
How to stop my machine asking for multiple passwords when I log in?
115351
Login screen characters all question marks, login info isn't working
121883
Cannot login to my user account
104143
Ubuntu 16 Stuck in Login Loop after Installing Nvidia 364 Drivers
139134
How do I change the login screen in Ubuntu 16.04+?
27749
User account doesn't appear on first login screen
106566
Ubuntu 18.04 opening system settings logs me out