I just bought a Dell xps developer edition (Ubuntu 16.04).
When I press ctrl+alt+up, down, left, right
It moves the current windows I have open around. Every so often, it changes workspaces, but pretty rarely. I don't care anything about having the grid, assuming this is what's breaking the workspaces. I use workspaces regularly.
I downloaded ccsm, but I can't find anything that's bound to the keybindings I specified. Also, unchecking the grid functionality seemed to do nothing.
I was able to find this thread, that confirms the grid answer, but unbinding the keys from grid dind't work.
The only other thing I've done to make this laptop more tolerable is remote some ridiculous dell software that seems to have no real purpose. I'd love to make a guide on how to make this incredibly expensive laptop that seemed like a great idea, tolerable.