I'm using Windows 7 on a laptop with a pretty small 1920x1080 screen and an external 1920x1200 screen that is much bigger physically.
No matter how I set the position of the external screen relative to the internal screen in
Display->Screen Resolution, there's always a point where horizontal lines across displays don't line up, because Windows assumes the pixels to be the same physical size on both displays.
Can I either resize the monitor in the system settings or use a third party program to handle the two monitors better? Or is this impossible because a window that's half on one, half on the other screen would have conflicting information about resolution? If that's the case, I would also accept a solution where only the mouse movement across screen scales properly A difficulty with that might be different mouse sensitivity between screens, but that's already not very consistent.
I could of course just reduce the screen resolution of the internal monitor, but that... well, would reduce the resolution. I don't want that.
There is this question, but I'm not sure if the asker means the same thing. I think he has a monitor with non-square pixels. I'm only concerned with the physical height.