Control: found -1 6.3.0+dfsg2-7 It appears this was intentional, but the binary package should also have been removed: > vtk6 (6.3.0+dfsg2-7) unstable; urgency=medium > * d/*: remove support for QT, no reverse deps, Closes: #975135 Apparently vtk6 also Depends on libvtk6.3-qt for unknown reasons. Chris