Alt+Left and Right arrow keys change from GUI to console
I'm using Ubuntu GNOME 16.10 and recently I noticed that by pressing Alt+Left changes from the GUI to the tty.
I use that shortcut regularly and this behavior interferes with my workflow.
How can I disable it?
Only workaround I can find is to run sudo kbd_mode -s, which fixes it in the current session for me.
I'm not sure how to use that to fix it permanently, or what the root cause is.