Keyboard problems in Linux with IntelliJ

Numpad arrow keys

So the numpad arrow keys do not work in my IntelliJ editor under Fedora Core 31.

I read about similar issues on the Internet.

One of the solutions that worked for me, was to change the file /usr/share/X11/xkb/symbols/keypad.

First off copying the original file seems like a good idea, something like keypad.original.

Then replace all occurrences of KP_Up, KP_Down, KP_Left, KP_Right with Up, Down, Left, Right respectively.

Either rebooting or executing a setxkbmap should do the trick.

Ctrl-Alt-Left and Ctrl-Alt-Right

I use these to go to the next or previous call in Intellij. Linux just wants to switch Workspaces, when I do that.

The shortcuts could not be found using the standard Settings tool.

But I found a solution at [2].

gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-up []
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-down []
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-left []
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-right []

With a reset if I decide to need it like:

gsettings reset org.gnome.desktop.wm.keybindings switch-to-workspace-up
gsettings reset org.gnome.desktop.wm.keybindings switch-to-workspace-down
gsettings reset org.gnome.desktop.wm.keybindings switch-to-workspace-left
gsettings reset org.gnome.desktop.wm.keybindings switch-to-workspace-right

References

Medium.com - A simple, humble but comprehensive guide to XKB for linux

https://medium.com/@damko/a-simple-humble-but-comprehensive-guide-to-xkb-for-linux-6f1ad5e13450

[2] Ubuntu - How to disable the keyboard shortcut to switch between workspaces

https://askubuntu.com/questions/744214/how-to-disable-the-keyboard-shortcut-to-switch-between-workspaces