This does not occur when using the RenderX XEP transformation to PDF - using XEP the SVG graphic is rendered perfectly.

The SVG files validate with the supplied schema - if I use the relax ng schema that you linked to above, I get the following error message: SystemID: C:\Program Files\Oxygen XML Editor 9\frameworks\svg\dtd\Full-1.2.rng Description: org.xml.sax.SAXParseException-no implementation available for schema...

When performing the standard pdf translation on a DocBook document, everything works beautifully except my svg format graphics are garbled and partially missing in the pdf document. Pixel format graphics such as png or jpg do not suffer this problem. Is there perhaps something wrong with my svg files?