@User: The proper command line for NULL graphics should be either

-d NULL -noconsole

or

-dnull

, which is an equivalent short-hand. Running the console, which is based on Tk, implies initializing graphics. Cairo and OpenGL are both ultimately based inside an X11 environment, so if X11 doesn't work, then Cairo and OpenGL won't work either. Possibly you are linking to a Tcl/Tk that was compiled with support for something other than X11? What system are you running on?

I've just run

magic -dnull

and the console showed up without any issue. So i guess Tk is working. I'm cheking the Tcl\Tk\X11 installation now. I'm working on Ubuntu 20.04 with MATE.