Sound problem with P7H55 MoBo Intel IbexPeak HDMI aplay versus alsamixer

[Lev Olshvang]

Hi,

My system  Asus P7HP55M Pro board +i3 530 processor running Ubuntu 
10.04, 10.10

Board had HDMI port to output  video and audio.
Video is OK,  cabel is ok because it is HDMI 1.4 (suppors audio )

I have issues with sound :
alsamixer under the kernel 2.6.32.26  shows only line in, mic and SPDIF 
output
aplay shows hdmi subdevice

I migrated to Ubuntu 10.10 to have a latest alsa version . Now alsamixer 
thinks it works with Intel IbexPeak HDMI chip, sound from line out gone.

I put a custom kernel (vanilla 2.6.36.2) hoping for the best but
still no sound.

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC892 Analog [ALC892 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: ALC892 Digital [ALC892 Digital]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

aplay -L
default
pulse
     Playback/recording through the PulseAudio sound server
front:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     Front speakers
surround40:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
     HDA Intel, ALC892 Analog
     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=Intel,DEV=0
     HDA Intel, ALC892 Digital
     HDMI Audio Output
hdmi:CARD=Intel,DEV=1
     HDA Intel, INTEL HDMI 0
     HDMI Audio Output


card 0: Intel [HDA Intel], device 7: INTEL HDMI 0 [INTEL HDMI 0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 8: INTEL HDMI 1 [INTEL HDMI 1]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
--------------------------------------------------------------------------------------
Alsamixer  correctly lists  master, front/line, 2 SPDIF and other 
controls    BUT NO HDMI


You see here the problem aplay is correct, alsamixer misses someting

The question is - what  is the missing part ?