Ubuntu – Ctrl + Alt + Arrow key doesn’t switch workspaces


My Ctrl+Alt+Arrow key fails to switch my workspace, but this is only true if

  1. NumLock is on
  2. I press Ctrl followed by the Alt key
  3. I'm using the left Alt key
  4. I'm logged in as me (as opposed to a guest)

Any help debugging this weird behavior would be greatly appreciated. It's a pretty frustrating little bug that gets in my way at least 20 times a day, and it's so strange that I would really just like to understand how it could be happening, although I wouldn't mind just fixing it with some kind of keybindings/unity/compiz reset. I just need some pointers on how to achieve this reset. Thanks!

Best Answer

I've solved it by enabling Desktop Wall in CompizConfig Settings Manager:

Desktop Wall - CCSM