[orca-list] Orca not working with braille display

[Vojtěch Polášek <krecoun gmail com>]

Hi,
I am running Arch 64 bit and Orca from master. This problem happens also
with orca from official repos.
I have Focus 40 blue braille display and it seems to work with Brltty
normally. It is recognized and displays "Screen not in text mode" in my
preferred braille table.
But Orca can't use it. I enabled braille support in Orca preferrences
but still "Screen not in text mode".
Do I need any additional packages?
I will try to look into debug.out.
Vojta