Comment 1 for bug 218374

Confirmed, this is also true in the upcoming Hardy release, even less excuse there as the G15 tools are available as packages from the Hardy repositories.

I think what is happening is that the package maintainer does not have the G15 build dependencies satisfied as lcdproc will just skip any driver libraries it can't build because of missing development packages.

With the missing G15.so file taken from a complete build of lcdproc, everything works as expected.