This might be related to https://bugzilla.xfce.org/show_bug.cgi?id=13225, but that doesn't quite sound right either. When setting a background image that is larger than the screen, using the scaled mode, the scaling is incorrectly done when the image is in portrait orientation. What happens is that the image is scaled down to roughly two thirds of the real target size, and the last line of pixels on the right and at the bottom are copied to fill in the remainder. My screens are in portrait orientation, but similar issues happens in landscape as well. I would attach an image that can be used for reproduction, as well as a screenshot that shows how it turns out, but the images are too large. Instead, they can be found online here: Background image: http://ibidem.homeip.net/tmp/bugzilla.xfce.org-bugreport/test_background.jpg Screenshot: http://ibidem.homeip.net/tmp/bugzilla.xfce.org-bugreport/screenshot.png
*** Bug 14838 has been marked as a duplicate of this bug. ***
Andre Miranda referenced this bugreport in commit 723feab8cd11285410c2a10afa328d6d7611e052 Fix scaling of images with orientation metadata (Bug #14644) https://git.xfce.org/xfce/xfdesktop/commit?id=723feab8cd11285410c2a10afa328d6d7611e052
Thanks for reporting.
*** Bug 14360 has been marked as a duplicate of this bug. ***