Description of problem: In F12 this driver worked fine; in F13-Beta it does not. Version-Release number of selected component (if applicable): kernel-2.6.33.3-72.fc13.x86_64 pulseaudio-0.9.21-6.fc13.x86_64 Additional info: lspci: 09:00.0 Audio device: Creative Labs X-Fi Titanium series [EMU20k2] (rev 03) I have no idea what other info might be needed to diagnose this.
I discovered that disabling the on-board realtek device in the BIOS "solved" the problem. Which means it never was a kernel bug, but one somewhere in the user-level routing of the sound. Closed, and I'll open a new bug against pulseaudio.