Comment 8 for bug 745579

I am affected by this also, with a Radeon HD 4670 connected to two Dell 20" flat panels.

In comment #2 above, Bilal suggests that the problem stems from the right monitor being the primary one. This might be true, but if so, it leads to a deeper problem. When Unity first came up for me, I had to switch the two monitors in order for the cursor wrapping to work properly. Without that, moving the cursor off the left edge of the left screen wrapped the cursor to the right edge of the right screen. You could not move from the right edge of the left screen to the left edge of the right screen, as you would expect to do, and as compiz does with the classic desktop in Maverick.

Further, in Maverick, the top menu bar extends only across the left screen, while in Unity, it extends across both screens, which is not what I want. As you'll also notice from the screenshot, the notification applets appear on the upper right of both screens. They're duplicated but not mirrored.