How to change back to the console when stucked by the desktop environment

[mokhi]

I am using FreeBSD10.3 + Slim + MATE on my laptop without such problems.
Maybe you forgot about creating .xinitrc ?
BTW, you can reboot to single user mode and delete slim from startups
(rc.conf) and start solving problem then (creating .xinitrc if not
created it and so on)

Best regards, Mokhi.