After upgrading from 10.10 to 11.04, the key sequence ALT-shift-uparrow now seems to have a window-manager level definition.
It seems that this is a new unity key sequence. However, I'm using "Classic Ubuntu" on login -- i.e. I'm using Gnome. Nevertheless, this new key sequence has its Unity functionality.
I'm an emacs user (where meta=ALT), and meta-shift-uparrow is a key sequence that I use fairly often (manipulating tables in org-mode). So I'd like to know how to turn off this Unity/Gnome keybinding, so that emacs actually sees this key sequence.
EDIT: I should have added that as far as I can see, this keybinding (alt-shift-uparrow) is not mentioned in the Gnome "Keyboard Shortcuts" tool (available from the System->Preferences menu).