Why do I get black map images when I use ImageMagick?
There was a bug in versions of Xastir prior to the CVS version of 4 December 2009 that caused this problem if ImageMagick (or GraphicsMagick) were compiled with QuantumDepth not equal to 16 (GraphicsMagick now defaults this parameter to 8). The bug was fixed, and current versions of Xastir should not have this problem. If you are running an older version than 4 December 2009, updating will likely solve this problem for you. If you are running a version higher than 1.9.7 or a CVS version checked out after 4 December 2009, then the problem lies elsewhere. It may be due to bugs in your particular version of ImageMagick, but more likely it’s related to the color-depth of your X-Server. If you are using 8-bit, 24-bit, or 32-bit color-depth: Try 16-bit, which is the color-depth best supported by the Xastir code.