[BRLTTY] Clickable links, virtual consoles etc. (Was Re: Footsteps towards better accessibility in Linux)

[Nicolas Pitre]

On Fri, 9 May 2025, Sébastien Hinderer wrote:

> Nicolas Pitre (2025/05/08 10:50 -0400):
> > I currently use a 160x120 screen. Should work fine even up to 240x240 if 
> > you want.
> 
> How do you know these limits?

I saw the kernel code for /dev/vcsa and /dev/vcsu.

The screen size and cursor position information use only one byte each. 
This means the actual limit that can fit is 255. However, at least as 
far as columns go, it is nicer to have the screen be a multiple of the 
braille window width, hence 240.

> I tried specifying nothing and I got a 135 lines per 480 column screen
> which was actually not usable, for reasons I am not able to explain.

What do you mean by "specifying nothing"?


Nicolas