Hi!

I have Ubuntu 9.04 on MacBook Pro 3.1 (Santa Rosa). There is no sound as 
well....
Just a few days ago I did have a sound, but the I decided to upgrade from 8.x 
to the 9.04 Ubuntu.

The PCM channel is ON.

$ lspci -vv
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio 
Controller (rev 03)
        Subsystem: Apple Computer Inc. Device 00a0
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 256 bytes
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at 9b500000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel


 $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

 $ lsmod |grep snd
snd_hda_intel         435636  8
snd_pcm_oss            46336  0
snd_mixer_oss          22656  2 snd_pcm_oss
snd_pcm                82948  3 snd_hda_intel,snd_pcm_oss
snd_seq_dummy          10756  0
snd_seq_oss            37760  0
snd_seq_midi           14336  0
snd_rawmidi            29696  1 snd_seq_midi
snd_seq_midi_event     15104  2 snd_seq_oss,snd_seq_midi
snd_seq                56880  6 
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              29704  2 snd_pcm,snd_seq
snd_seq_device         14988  5 
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    62628  22 
snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              15200  2 snd
snd_page_alloc         16904  2 snd_hda_intel,snd_pcm

-- 
no sound for macbook pro Santa Rosa intel 82810H
https://bugs.launchpad.net/bugs/295378
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