Nonetheless, in Linux, it's still a jungle [PNG].
Any user, power or novice, generally approaches bugs in an identical fashion: stuff needs to work now. Without further ado, here is part one of rationale behind guidelines for troubleshooting audio anomalies in Ubuntu (some of which is documented).
My sound is broken. Well, not quite. Generally when one's sound is inaudible, it can be caused by numerous culprits. Prior to Intrepid, one's user had to be in the "audio" group to use sound devices. PulseAudio's use of PolicyKit obviates that requirement, so one's user no longer has to be in that group. However, users experimenting with multiple desktop environments like Xfce, KDE, and GNOME - some of which don't use PulseAudio with a PolicyKit backend - need to be in that group. What am I driving at?
- The user has to know too much about traditional discretionary access control.
Next time, we look at how Linux speaks to our audio hardware.