screen not in text mode on a braille display, how can I put it back in text mode?

[Linux for blind general discussion]

Hi Friends,

I do not know how many of you use a braille display with linux, but I 
like braille. I am using my VarioUltra 40 as my braille display with my 
linux. I hope if there are braille users here can help me solve this puzzle.


I noticed that if I boot up my Slint with the braille display turned on 
and connected it works beautifully well with my screen reader. However, 
If I boot my machine with the braille display is turned off or 
disconnected, when I connect it or turn it on, I see the brltty 6.4 
comes up on the display, but after that I can only read on the display 
screen not in text mode. Even if I kill orca with the killall command 
and restart orca, the Braille display only shows screen not in text 
mode.  If I want to use braille I am left with no option but to reboot 
the machine with the braille display is turned on and connected to my 
laptop.

Is there a way of being able to activate braille even if I forget to 
turn the display on and connect it to my laptop after the bootup?

Cheers,

Ibrahim