No sound on ASUS P5P55D-E LX with Lucid

[benlau]

Hi ,

I just bought a new computer with ASUS P5P55D-E LX with i7 and Geforce 120 display card. After installed Lucid (64 bits), I found that it's audio interface do not have any sound output.



$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf5ff8000 irq 22
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf7bfc000 irq 16




$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 1/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: Intel [HDA Intel], device 1: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0


I have installed PulseAudio Volume Control,it show that all of the interface is not muted. And volume bar is changing during audio playback , but can not hear anything from it..


I have tried to follow this guide , but do not really help.
https://help.ubuntu.com/community/SoundTroubleshooting

Any suggestions to study and solve the problem? Thanks for any advise.