I have downloaded and tested DirectFB examples and tutorials here: http://directfb.org/index.php?path=Main%2FDownloads&page=1
Though some don't even compile (df_dok.c), many of them do compile and work. Some hang afterward running, sometimes locking X completely so that it won't even exit after kill -9 (pps.c). I am going to recompile SDL with debugging and without optimisation and step into it again.
