[BRLTTY] No keyboard echo on Ubuntu too

[Hermann]

Hi,
after updating brltty to the latest from svn, I get the same issue than 
in GRML:
No typing echo and no speaking of the characters when moving the cursor 
char by char.
I don't hear that "symbol 0" on Ubuntu (Gutsy).
Note: This happens only in text mode; Orca of course speaks.
Hermann