gsettings list-recursively  org.gnome.desktop.wm.keybindings | sort | more

sudo apt-get install gnome-tweaks

gsettings set org.gnome.desktop.input-sources xkb-options
"['grp:ctrl_shift_toggle']"

gsettings set org.gnome.desktop.wm.keybindings switch-input-source "['']"
gsettings set org.gnome.desktop.wm.keybindings switch-input-source-backward  "['']"
gsettings set org.freedesktop.ibus.general.hotkey triggers "['']"

gsettings set org.mate.peripherals-keyboard-xkb.kbd options
"['grptgrp:ctrl_shift_toggle']"

sudo add-apt-repository ppa:nrbrtx/xorg-hotkeys
sudo apt-get update
sudo apt-get dist-upgrade

sudo apt install gnome-tweaks

gnome-control-center

sudo apt install dconf-editor

dconf-editor

gsettings set org.gnome.desktop.wm.keybindings
switch-input-source "['<Control>Shift_L']"