Home / ubuntu / Questions / 1118729
In Process
Hay
Asked: 2019-02-17 02:28:29 +0800 CST

Disable CTRL-SHIFT-U on 18.04.2. I uninstalled ibus and the combo still works?

  • 772

I'd like to disable CTRL-SHIFT-U on 18.04.2.

Currently, pressing CTRL-SHIFT-U within a text prompt will make an underlined u appear on the screen and pressing keys will not append text to the prompt until Escape or Enter is pressed.

This prevents me from using the default combo in IntelliJ IDE to toggle case, and I do not wish to use something else than the default.

There are countless questions about this on Superuser and Askubuntu. I tried most of the answers, none of them has any visible effect.

Go to Language Support > Keyboard input method system > Set the value to none (some answers suggest pressing the Apply System-Wide button)

or

Add export IBUS_ENABLE_SYNC_MOVE=1 to ~/.profile and then reboot

or

Kill the ibus-daemon process

This one, the process does exist, but it respawns immediately when killed.

Throughout the answers it was implied that ibus was responsible for this behavior. There is even a GitHub issue about this. So I finally caved in and decided to try removing the ibus package by using apt-get remove ibus and apt-get purge ibus, which is suggested by one of the answers.

After rebooting, CTRL-SHIFT-U still does this thing. There is no longer any ibus-daemon process even after startup. If I go to Language Support, there is no longer ibus as a Keyboard input method system option. It is set to none, and only XIM remains as an alternative.

How come the CTRL-SHIFT-U still works even after ibus is uninstalled, and how can I disable it once and for all on Ubuntu 18.04.2?

keyboard shortcut-keys ibus intellij

4 Answers

  1. There is a way Without making system-wide changes which may cause unwelcome side effects. Run IDEA with environment variable XMODIFIERS set to empty. There are a few ways to do that:

    1. Run IDEA from command line or a script as follows:

      XMODIFIERS="" /path/to/idea/bin/idea.sh

    2. Edit idea.sh and add the following line at the top:

      export XMODIFIERS=""

    3. Edit Gnome desktop entry for IDEA at ~/.local/share/applications/jetbrains-idea.desktop and precede the Exec line like:

      Exec=env XMODIFIERS="" "/path/to/idea/bin/idea.sh" %f

    Either will do. The last one is for launching IDEA by clicking on its icon from the dock while the others would work from command line too. Just keep in mind if the first method is used with an intermittent script, the desktop entry created by IDEA wouldn't point to this script. So you may want to alter the path at the Exec line so it points to your script or use method 2. This method though would need be re-applied each time you install new version of IDEA.

    My solution to do it once is:

    1. Install IDEA into folder like some/path/idea/idea-IU-192.6817.14
    2. Run IDEA and create desktop entry for it (menu Tools)

    3. Link given IDEA version under current folder

      ln -s some/path/idea/idea-IU-192.6817.14 some/path/idea/current

    4. Edit ~/.local/share/applications/jetbrains-idea.desktop and change Exec line

      Exec=env XMODIFIERS="" "some/path/idea/current/bin/idea.sh" %f

    Whenever you download a new version of IDEA just link it as current and no need to repeat these steps. Obviously extracting new versions of IDEA always to the same folder and replacing the previous version would work as well without linking.

    • 2

  2. It releated with ibus shortcuts, remove those shortcuts with:

    gsettings set org.freedesktop.ibus.panel.emoji hotkey "[]"
gsettings set org.freedesktop.ibus.panel.emoji unicode-hotkey  "[]"
    • 2

  3. This is a bug listed here:

    https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1885914

    The solution that I found is to remove the ibus package:

    $ sudo apt-get remove ibus
$ sudo apt-get purge ibus

    Go to updates and set the repository for focal fossa version for Ubuntu and remove the remanescent eoan

    Go to updates and set the repository for focal fossa version for Ubuntu and remove the remanescent eoan and reinstall ibus:

    sudo apt-get install ibus

    Go to language suport and set the iBus method, for user and root

    In the terminal for user and root:

    ibus-setup

    and change the shortcuts in the emoji tab

    In the terminal for user and root:

    im-config

    and set ibus

    For user in the terminal:

    gedit .bashrc

    Include the following lines at the end:

    export GTK_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
export QT_IM_MODULE=ibus
    • 1

  4. In ubuntu 20.10 I just open IBUS preference (ibus-setup) and change shortcut at Emoji tab

    window screen

    • 1