[Mlterm-dev-en] Fwd: Re: Input buffered in mlterm-fb?

[Didier S. <di...@sl...>]

(message initially sent on, 8 May 2017 19:24:06 +0200 to Araki instead of to the list, sorry for the mistake)

Hi,

Le 08/05/2017 à 18:30, Araki Ken a écrit :
>  If you execute "KBD_INPUT_NUM=0 mlterm-fb" and can't input anything,
> /dev/input/event0 might not be a keyboard device you use.
>  Will you inform me of the result of following commands just in case?
> 
>  $ for f in /sys/class/input/input*/name; do echo $f; cat $f; done

I already checked, but here goes:

didier[~]$ for f in /sys/class/input/input*/name; do echo $f; cat $f; done
/sys/class/input/input0/name
AT Translated Set 2 keyboard
/sys/class/input/input1/name
Speakup
/sys/class/input/input10/name
HDA Intel PCH Headphone
/sys/class/input/input11/name
Video Bus
/sys/class/input/input12/name
Logitech USB Optical Mouse
/sys/class/input/input13/name
BRLTTY 5.4 Linux Screen Driver Keyboard
/sys/class/input/input3/name
Lid Switch
/sys/class/input/input4/name
Sleep Button
/sys/class/input/input5/name
Power Button
/sys/class/input/input6/name
ThinkPad Extra Buttons
/sys/class/input/input7/name
HDA Intel PCH Mic
/sys/class/input/input8/name
HDA Intel PCH Dock Mic
/sys/class/input/input9/name
HDA Intel PCH Dock Headphone
didier[~]$

By the way I forgot to tell: this is on a Lenovo Thinkpad W520.

I also killed brltty (daemon that speaks to Braille drivers for blind
people who use a screen reader aka Braille terminal for input and
output), but this didn't change anything.

Which leads to an off topic question. nosh is supposed to be able
to provide two outputs if I understand well: one to draw a framebuffer
and another to provide discrete characters that can be read by brltty.
Can mlterm do something similar[1]? Cf:
https://jdebp.eu/Softwares/nosh/brltty.html
https://jdebp.eu/Softwares/nosh/user-vt-screenshots.html

>  If no keyboard is found except /dev/input/event0, start mlterm
> as follows. (This is a workaround.)
> 
>  KBD_INPUT_NUM=-1 mlterm-fb

This worked, thanks! From this can you provide a general solution? I ask
because this is not for me but for the Slint text installer: Slint is an
internationalized distribution, that includes a text (ncurses/dialog)
installer.

In the previous version I used fbterm to overcome the 512 glyphs per font
limitation of the Linux console, but fbterm is a dead project and in a
few cases doesn't work with very old hardware.

I just recently realized that mlterm (already shipped in Slint) can also
handle a framebuffer, hence my questions.

Best regards,

Didier

[1]nosh is not an option for us I think as it would be difficult to get
only the virtual terminal and we don't want the whole init system.
I am also aware of kmscon but that is a dead project too Ther is also
bogl/bterm used by the Debian text installer but I am not comfortable
with their unaliased specific font format, plsu they use newt/whiptail
that can handle bidi texet but would need a lot adapatation as we use
ncurses/dialog instead.