Public bug reported:

There are 2 integrated soundcards presents in Lenovo Q180 PC - one based
on analog ALC662 chip and works fine (sound works), another card (#2) is
a part of ATI Redeon HDMI driver (open-sourse radeon driver is used,
video HDMI output is fine) - this HDMI sound does not work. Now I need
to use HDMI sound output. Ubuntu x64 kernel 3.8.0.21 generic (latest in
mainstream repos).

HDMI sound cards appears in alsamixer, but with 1 controller called
"S/PDIF" - which is strange. Not muted.

aplay -l DOES show this HDMI card - see below. It shows card #2: Generic
[HD-Audio Generic], device 3: HDMI 0 [HDMI 0]

aplay -Dhw:2,3 test.wav gets an error - Cannot open file or device.

PulseAudio does not show the card/sink in the list, although it shows
some "S/PDIF" - most probably related to ALC662 card.

pacmd list-cards DOES NOT list any HD-Generic or ATI cards. Only the
ALC662 analog one. pacmd list-sinks DOES NOT show any HDMI-related sink.

Aslo attached alsa-info.sh output.


------

serg@IdeaCentre-Q180:~$ aplay -l
**** Список PLAYBACK устройств ****
карта 0: Intel [HDA Intel], устройство 0: ALC662 rev1 Analog [ALC662 rev1 
Analog]
  Подустройства: 0/1
  Подустройство №0: subdevice #0
карта 0: Intel [HDA Intel], устройство 1: ALC662 rev1 Digital [ALC662 rev1 
Digital]
  Подустройства: 1/1
  Подустройство №0: subdevice #0
карта 2: Generic [HD-Audio Generic], устройство 3: HDMI 0 [HDMI 0]
  Подустройства: 1/1
  Подустройство №0: subdevice #0
serg@IdeaCentre-Q180:~$

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Info from alsa-info.sh"
   
https://bugs.launchpad.net/bugs/1180781/+attachment/3678267/+files/alsa-info.txt.67l1ZZDG9D

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https://bugs.launchpad.net/bugs/1180781

Title:
  No HDMI sound on ATI HD6450A, ALSA card is recognized

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