Updated: 20071223

After upgrading to pulseaudio-0.9.7 it suddenly wont start any longer:

Dec 22 14:01:47 dustyboots pulseaudio[5763]: alsa-util.c: Cannot find mixer control "Master".
Dec 22 14:01:47 dustyboots pulseaudio[5763]: x11wrap.c: XOpenDisplay() failed
Dec 22 14:01:47 dustyboots pulseaudio[5763]: module.c: Failed to load module "module-x11-publish" (argument:
""): initialization failed.
Dec 22 14:01:47 dustyboots pulseaudio[5763]: main.c: Module load failed.
Dec 22 14:01:47 dustyboots pulseaudio[5763]: main.c: failed to initialize daemon.
Dec 22 14:01:47 dustyboots pulseaudio[5762]: main.c: daemon startup failed.

For now the workaround seems to comment out the following line in /etc/pulseaudio/default.pa

load-module module-x11-publish

Update: The actual fix documented in metadata.xml is to disable the X USE-flag if you're running a System Wide Instance.

Thx Diego for the quick answer!