Re: switching layout in tty

[Roman Riabenko via <help-guix@gnu.org>]

Hello Florian

On Tue, 07 Jan 2025 21:11:58 +0100
"pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> wrote:
>   (keyboard-layout (keyboard-layout "us,ua"
>                                     #:options '("grp:alt_shift_toggle")))
> 
> does work for me, although grp:shifts_toggle does not.  Possibly
> grp:shifts_toggle would only work on some keyboards?
> 
> If your stuck console state is a real bug and not due to xoff/xon flow
> control (i.e. Ctrl-S was pressed), then this is a bug with some software
> used by Guix, maybe the Linux kernel, or with console-setup.  Though I
> cannot reproduce it with grp:alt_shift_toggle.

Pressing both Shifts with "grp:shifts_toggle" option produces no effect
for me. Both "grp:alt_shift_toggle" (Alt+Shift) and
"grp:ctrl_shift_toggle" (Ctrl+Shift) options work, but when the
layout is switched, something else happens often, such as no
characters appear or the text is replaced with different characters and
it becomes difficult or impossible to enter shortcuts. "grp:lwin_toggle"
option seems to switch layouts without any side effects, so I will use
it for now. However, I do not understand what's wrong with these Shift
shortcuts.

I tried a few keyboards from different manufacturers and the behavior
is the same.

> GNOME has its own settings that are configurable inside the GNOME
> Keyboard Settings.

I could not find how to change this shortcut in GNOME Settings
application. But I finally changed it with the below commands. This
confirms that it is an entirely different setting. I still do not know
why there seem to be two Latin layouts, so that I have to press the
shortcut twice.

$ guix shell glib:bin
[env]$ gsettings set org.gnome.desktop.input-sources xkb-options
"['grp:shifts_toggle']"

The following turns the shortcut off completely in GNOME.

[env]$ gsettings set org.gnome.desktop.input-sources xkb-options "['']"

Roman