First of all for some reason I have two different "switch keyboard layout" hotkeys: one which I set in
Settings->Devices->Keyboard and the second one(Left ctrl + Left shift) is produced by
sudo dpkg-reconfigure keyboard-configuration and removing hotkey binding solves the issue just until the reboot/sleep mode.
Having tried to remove
keyboard-configuration I got the following output:
The following packages will be REMOVED: console-setup console-setup-linux kbd keyboard-configuration nvidia-384 nvidia-driver-390 ubuntu-desktop ubuntu-minimal xorg xserver-xorg xserver-xorg-core xserver-xorg-input-all xserver-xorg-input-libinput xserver-xorg-input-wacom xserver-xorg-video-all xserver-xorg-video-amdgpu xserver-xorg-video-ati xserver-xorg-video-fbdev xserver-xorg-video-intel xserver-xorg-video-nouveau xserver-xorg-video-nvidia-390 xserver-xorg-video-qxl xserver-xorg-video-radeon xserver-xorg-video-vesa xserver-xorg-video-vmware
It does not look like this package should be removed. So why there are two different sources of layout switch bindings and how can I remove one?