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I am trying to enable automatic log-in on a linux PC that starts a QT application on startup. There is only one user account on the machine, and I have Automatic Login "ON" in the user settings. Screen Lock is "OFF" in Privacy settings.

However, when the computer is started, a lock screen still appears where I select the user, which brings up the password entry screen. Once the password is entered, my QT application starts up.

I want to disable the login screen so that when the computer is started, the QT application comes up immediately. The monitor is a touch screen, so by disabling the password entry screen, there will be no need for a keyboard. Any help is appreciated, and please let me know if I can provide more information. Thank you!

drifter
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1 Answers1

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Edit /etc/lightdm/lightdm.conf and add the following: 

[SeatDefaults]
autologin-user=<YOUR USER>
autologin-user-timeout=0
user-session=ubuntu
# Uncomment the following, if running Unity
#greeter-session=unity-greeter

Suggested here

You could also check if with switching to gdm3 autologin works:

sudo apt install gdm3
sudo dpkg-reconfigure gdm3
Gryu
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  • Thank you, I'm not with the PC at the moment so will have to follow up with you on Thursday when I can test it. – drifter Apr 07 '20 at 17:54
  • I was just checking a linux PC I am currently using (not the one I am having trouble with) and it does not have a /lightdm directory. I found this potential solution: https://help.gnome.org/admin/system-admin-guide/stable/login-automatic.html.en

    Does this seem like a valid method to try?

     – drifter Apr 08 '20 at 15:40