According to the Alsa sound card list for Creative Labs there is a driver being tested for this card:

0a:00.0 Audio device: Creative Labs [X-Fi Titanium series] EMU20k2 (rev 03)
Subsystem: Hewlett-Packard Company Device 2a83
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at fbff0000 (64-bit, non-prefetchable) [size=64K]
Memory at fbc00000 (64-bit, non-prefetchable) [size=2M]
Memory at f4000000 (64-bit, non-prefetchable) [size=64M]

Should a newby give this a try or wait for the testing to be completed? How long does testing take?