[BRLTTY] AT-SPI2 screen driver: spaces at end of line not rendered correctly under Emacs and Vim

[Christian Schoepplein]

On Tue, Apr 01, 2025 at 09:24:31AM +0200, Sébastien Hinderer wrote:
>Re-trying to use BRLTTY in graphical terminals, I just noticed that
>spaces at end of lines are not rendered correctly under Emacs and Vim,
>whereas they are e.g. in the shell or the Joe editor.
>
>Problem description: when a space is typed to end a word it does not
>appear on my braille display until the first letter of the next word is
>typed, at which time both the space and the typed letter appear on the
>braille display. Similar issues can be observed when deleting characters
>with backspace.
>
>Has this behavior already been observed / reported? Can somebody else
>check that it's not only on my system?

I have this problem too on a Debian Testing system when working in 
mate-terminal.

Because brltty does not show this behaviour in a normal text console I think 
it is related to libvte. Samuel offered some patches in the past to fix more 
problems like this, e.g. problems with screen refreshing, lost focus and so 
on, and I think the problem you describe is one of the little things that 
still need to be fixed.

Ciao,

  Schoepp