System settings/sound does not open, freezes and I have to force close. Speaker symbol with volume control does not open scroll-down menu, and there is no sounds. Many people have problems with Hudson Azalia in Ubuntu, but I found no working solution.

I don't really understand much of this, but here are some more details:

aplay -l  :


**** List of PLAYBACK Hardware Devices ****

(after running this one, it starts some kind of process that doesn't get any results, and doesn't stop, terminal has to be shut down)

 lspci -vnn | grep -iA5 audio:


00:01.1 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI Device [1002:9902]
    Subsystem: Hewlett-Packard Company Device [103c:184c]
    Flags: bus master, fast devsel, latency 0, IRQ 53
    Memory at f0444000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
--
00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] Hudson Azalia Controller [1022:780d] (rev 01)
    Subsystem: Hewlett-Packard Company Device [103c:184c]
    Flags: bus master, slow devsel, latency 32, IRQ 54
    Memory at f0440000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel

It seems to me that I'm currently running hda Intel drivers on my AMD Hudson Azalia soundcard. I can't see what drivers this soundcard uses.

Do I need any additional drivers for my soundcard, and where would I find them?