Thanks for the report. I think there are really two issues here.
(a) the demo/ source directory is not included in the package (b) you're having trouble LaTeXing the demos Issue (a) is absolutely not ideal. I'm considering including them in /usr/share/doc/pdf-presenter-console/examples/ but fiddling around to have the Makefile just invoke latexmk, and adding a latexmkrc, and not including the video files instead having the Makefile download them. Including the video files seems like overkill. Of course, they need pdfpc.sty in texlive-latex-extra. Maybe the package should Suggest: them? That seems like overkill. Maybe this stuff should be in a separate -doc or -demo package? That seems a bit silly. I suppose adding a check to the Makefile that issues a warning if those packages are not installed might be the best compromise. Which brings us to (b). Both the demos work fine for me (using plain old "latexmk --pdf"). Under debian testing. Do you have texlive-latex-extra installed? If so, please install latexmk and send a full transcript of $ cd demo $ latexmk --pdf -gg pdfpc-demo.tex $ cd pdfpc-video-example $ latexmk --pdf -gg video-example.tex and I'll see if I can diagnose the problem.
