Still no success on the IME front.
I found "Writing non-Latin languages" (via "All Manuals") and followed the
advice. I successfully installed both ibus-hangul and fcitx-hangul with all
their dependencies (as well as nabi). Trisquel's manual page says: "After
that, you would press Ctrl+Space to turn on specific language input methods."
But nothing happens, neither on the panel nor when I'm typing in a Pluma
window, neither with Super+Space nor with Ctrl+Space.
"IBus Preferences" → "General" → tick "Show icon on system tray" checkbox
→ nothing happens.
"IBus Preferences" → "Input Method" → "Add" several Russian, nothing
happens; Korean still not even listed
"Fcitx Configuration" → "Appearance" → see "Cannot load currently used
user interface info"
I think I will find out how to do this, as I have on earlier versions of
Trisquel and other GNU/Linuces, I just don't think it's obvious how to do it
at all.
$ ibus-daemon with or without -v variously results in nothing happening and
no new prompt appearing, or a message telling me ibus-daemon is already
running, or “Gtk-Message: Failed to load module "canberra-gtk-module" /
(ibus-ui-gtk3:12110): IBUS-WARNING **: panel.vala:308: If you launch KDE5 on
xterm, export XDG_CURRENT_DESKTOP=KDE before launch KDE5. /
(ibus-ui-gtk3:12110): IBUS-WARNING **: ibus_bus_call_sync:
org.freedesktop.DBus.Properties.Get:
GDBus.Error:org.freedesktop.DBus.Error.Failed: No global engine.”
And after installing "ibus-anthy" as root, I see it available ("IBus
Preferences" → "Input Method" → "Add") when I open ibus-setup as root. I
no longer see it when I open ibus-setup as normal user "trisquel". Instead, I
get “Keyboard Input Methods (IBus Daemon) is not running. Do you wish to
start it?” → Yes → “IBus has been started! If you can not use IBus,
please open System Menu -> System Settings -> Language Support and set
the "Keyboard Input Method" to "ibus", then log out and back in again.” Ah,
I hope logging out and in will do the trick. But if I log out on this live
system, won't all my installs and settings also get lost? So I'll try that
when I'm done with everything else, and I might not report back here soon.