[Bug 1412791] Re: automatic login configured in ubiquity cannot be disabled by gnome-control-center

[Tim]

** Branch linked: lp:~darkxst/user-setup/noTimedLogin

** Package changed: gnome-control-center (Ubuntu) => user-setup (Ubuntu)

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https://bugs.launchpad.net/bugs/1412791

Title:
  automatic login configured in ubiquity cannot be disabled by gnome-
  control-center

Status in Ubuntu GNOME:
  New
Status in user-setup package in Ubuntu:
  New

Bug description:
  Release: vivid (fresh install with ubuntu-gnome-desktop)
  Version: 
      ubiquity 2.21.4
      gnome-control-center 1:3.14.2-2ubuntu1
      gdm 3.14.1-0ubuntu1

  
  What I expected:

  + Fresh install with ubiquity, create a user with auto-login enabled
  + User logs in automatically on subsequent boots
  + Disable auto-login via System -> Users -> Unlock -> Automatic login (OFF)
  + Restart and see gdm login dialog

  What happened:

  + After disabling auto-login, the user is nonetheless automatically
  logged if gdm is left alone for 10 seconds

  If auto-login is selected in ubiquity, it appears to write the
  following into /etc/gdm/custom.conf (relevant code at d-i/source/user-
  setup/user-setup-apply:268)

      AutomaticLoginEnable=true
      AutomaticLogin=$USER
      TimedLoginEnable=true
      TimedLogin=$USER
      TimedLoginDelay=10

  While toggling auto-login in gnome-control-center only appears to
  toggle the value after AutomaticLoginEnable (and hence, timed login
  remains true, and the assumption that a password should now be
  required is violated).

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