[Bug 1811204] [NEW] login console don't show up when switching from graphic.target to multi-user.target

[Bin Li]

Public bug reported:

We found the login console, like tty1, can't show up when we did below
command in 18.04.1.

$ sudo systemctl isolate multi-user.target 
or
$ sudo init 3

After above command, it will show a cursor with black screen.

I could switch to tty1 with 'Ctrl+Alt+F1', and login into system.

$ sudo systemctl isolate graphical.target 
or
$ sudo init 5

It could show the login GUI.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- No login console when switching from graphic.target to multi-user.target 
+ login console don't show up when switching from graphic.target to multi-user.target

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https://bugs.launchpad.net/bugs/1811204

Title:
  login console don't show up when switching from graphic.target to
  multi-user.target

Status in systemd package in Ubuntu:
  New

Bug description:
  We found the login console, like tty1, can't show up when we did below
  command in 18.04.1.

  $ sudo systemctl isolate multi-user.target 
  or
  $ sudo init 3

  After above command, it will show a cursor with black screen.

  I could switch to tty1 with 'Ctrl+Alt+F1', and login into system.

  $ sudo systemctl isolate graphical.target 
  or
  $ sudo init 5

  It could show the login GUI.

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