Beginner should use forums and search engine while advance users shall reporting bugs at bugs.debian.org and self research, wait for next release and self compiling. I had battery icon display problem (resolved my self), clamped polygon display problem (not resolved), session restore after suspend in gnome shell (not resolved), low fps in glxgears (resolved), no desktop environment after fresh installation in debain (resolved), out dated packages in debian cut (not resolved) and license issues of canonical for unity (resolved after shifting to debian).I want to make linux the system of choice for engineers. I found and compiled many engineering packages for cad, gis, project planning, and cae. There are many preloaded cae and gis distro but I want engineering packages right on debian main sources to be part of great community.