Accessing TTY from GUI desktop

[sm8ps]

When the graphical desktop is launched via standard '~/.xinitrc' in the console, there is no way to switch to a usable console (TTY) anymore. Although Ctrl+Alt+F1 does switch to TTY1, that one is blocked by the status messages of the X server. Ctrl+Alt+F2 brings one to the X desktop, Ctrl+Alt+F{3..12} to a blinking cursor.

What does work is to "interrupt" the X server in TTY1 by Ctrl+Z; it does keep working without a hick-up. Though, that does not seem ideal and my question is also due to curiosity:
How can I increase the number of active TTY on dCore-Trusty? dCore seems to not use runlevels like Ubuntu does, so I do not have a clue about where to start trying.

Thanks for any pointers or explanations!

[Jason W]

It is the multivt boot code to give more vts.

[sm8ps]

Great, thanks!