Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
Newer version of imagemagick seem to have a problem with detecting the screen resolution. For instance, when using
display -window root -backdrop picture.jpeg
now diplays the image sticking to the top left of the screen, while it used to center it nicely.
Similarly, when using display on an image larger than the screen size, the Pan Icon window appears, but the actual window used by display is the size of the image. Older versions were only displaying the biggest window that would fit into the screen and let the user navigate on the image using the Pan Icon view.
Downgrading to 6.3.7-9 fixes the problem.
Version is 6.5.1-0 and I can see the same behavior on my system.