Comment 38 for bug 30963

I tried inspecting Hoary(5.04) where sound has come out.
If for the problem solving, even a little it becomes reference, with you think and contribute.
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root@ibook:~ # lsmod | grep snd_
snd_powermac 48196 2
snd_pcm_oss 67972 1
snd_mixer_oss 23328 1 snd_pcm_oss
snd_pcm 115160 2 snd_powermac,snd_pcm_oss
snd_timer 29380 1 snd_pcm
snd 67896 7 snd_powermac,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
snd_page_alloc 11652 1 snd_pcm

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root@ibook:~ # cat /proc/asound/cards
0 [Tumbler ]: PMac Tumbler - PowerMac Tumbler
                     PowerMac Tumbler (Dev 16) Sub-frame 0

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root@ibook:~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Tumbler [PowerMac Tumbler], device 0: PMac Tumbler [PowerMac Tumbler]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

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@ibook:~ # aplay /usr/share/sounds/login.wav
Sound did not come out.

When ibook bootup, sound has come out.
I can't understand that why sound does not appear in being with this method.

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mixser.txt
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 176
  Front Left: Playback 123 [70%] [on]
  Front Right: Playback 123 [70%] [on]
Simple mixer control 'Headphone',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Headphone Detection',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Bass',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Limits: 0 - 72
  Mono: 0 [0%]
Simple mixer control 'Treble',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Limits: 0 - 72
  Mono: 0 [0%]
Simple mixer control 'PCM',0
  Capabilities: pvolume pvolume-joined
  Playback channels: Mono
  Limits: Playback 0 - 176
  Mono: Playback 123 [70%]
Simple mixer control 'PC Speaker',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Auto Mute',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Beep',0
  Capabilities: pvolume pvolume-joined
  Playback channels: Mono
  Limits: Playback 0 - 100
  Mono: Playback 15 [15%]
Simple mixer control 'DRC',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'DRC Range',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Limits: 0 - 95
  Mono: 0 [0%]