aplay -l says:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
so, i have an ALC662 chip. But i cant see a HDMI-Audio Device. The GFX Card is an Intel GM 965 and works fine...