If there are no adjustments, everything should line up in theory. Are your two monitors the same make and model? Or are they different physical sizes and/or resolutions?

Ahhhh, I see! The reason that happens is because of the bezels between the monitor. DisplayFusion doesn't know how wide they are, so it can't compensate for them automatically.

However, we're planning to add a wallpaper bezel compensation feature at some point, so I'll definitely let you know when that's available

Thanks!

Yep! That is how we do it actually. If you look at the Wallpaper_#.png file in %appdata%\DisplayFusion you'll see that it's just one big image that when applied, spans both monitors. There's no adjustments applied unless you specify them, or the monitors are different screen resolutions.

Think of it this way: If you draw a diagonal line on a piece of paper, then cut that paper in half and move them an inch apart (to simulate the monitor bezel), you'll see that they don't line up any more. It's not an issue with straight lines (like the one at the top of the airplane wing in your screenshot), but for diagonal lines, they look weird.

So, as I mentioned, the solution for now is to make the manual adjustments, like you've been doing. When we're able to implement an automated solution, we'll definitely let you know

Hope that all makes sense!

Do you have any Horizontal/Vertical adjustments for either monitor in the DisplayFusion Wallpaper window though? If you set them to 0 and apply the wallpaper again, that generated image should look like one giant image without any adjustments.

It's not actually a bug with anything (DisplayFusion or otherwise), it's just that the computer (and DisplayFusion) don't know how much to adjust for the bezel in between the monitors (the black plastic at the edge of the monitor). But as I mentioned, we're hoping to add a semi-automated feature for compensating for the bezels in the future, so I'll let you know when that's available

Thanks!