siven's questions

I have installed Kubuntu 18.04 (installed by kubuntu-18.04-desktop-amd64.iso), and I want to input Chinese. So I installed IBus, but it is not working. I used the following steps to install IBus:

1. sudo apt-install ibus ibus-qt4 ibus-gkt ibus-libpinyin ibs-m17n
2. run ibus-daemon -drx
3. run ibus-setup, and choose Chinese pinyin input method
4. open a Kate, choose input method, and it not working

Then, I configured IBUS following this wiki: https://wiki.archlinux.org/index.php/IBus#Chinese

firstly,

export GTK_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
export QT_IM_MODULE=ibus

secondly,

install qt4-qtconfig

then run

qtconfig-qt4

and Interface > Default Input Method, select ibus instead of xim.

thirdly,

export QT_IM_MODULE=ibus to ~/.xprofile (make a file)

then, reboot OS，but it is still not working, what's wrong with my operation?

In Kubuntu 18.04 Konsole or Kate applications, I cannot get special characters by enter a Unicode, such as 0x1234 to display 'ሴ'. Ctrl + Shift + U combo key does not work on those applications, but it works on gnome-terminal and other gtk3 applications. How can I type such Unicode characters in Kate or Konsole?

I have installed Kubuntu 18.04 and want to input unicode characters, but Ctrl+Shift+u combo does not work. I also try to install ibus using sudo apt install ibus ibus-gtk ibus-qt4 ibus m17n, then call ibus-setup, but this combo key does not work now although it works on Kubuntu 16.04.

when I attempt to change input method to "other unicode(m17n)", it fails and gives

(ibus-daemon:1738): GLib-CRITICAL **: 23:13:26.272: g_variant_unref: assertion 'value != NULL' failed

How I can input unicode on Kubuntu 18.04 by any other Methods?