Howdy all,
I have a Powermac G4 installed with Debian Squeeze. Its audio devices
are not detected on boot by the default kernel, and ALSA reports no
sound cards:
=====
$ uname -a
Linux geranium 2.6.26-2-powerpc #1 Sun Jul 26 21:16:45 UTC 2009 ppc GNU/Linux
$ /usr/sbin/alsactl --version
alsactl version 1.0.20
$ dmesg | grep snd
$ lsmod | grep snd
snd_aoa_i2sbus 22820 0
snd_pcm_oss 45248 0
snd_mixer_oss 19360 1 snd_pcm_oss
snd_pcm 79748 2 snd_aoa_i2sbus,snd_pcm_oss
snd_page_alloc 12392 1 snd_pcm
snd_aoa 19840 0
snd_seq_oss 36756 0
snd_seq_midi 10240 0
snd_rawmidi 26176 1 snd_seq_midi
snd_seq_midi_event 10528 2 snd_seq_oss,snd_seq_midi
snd_seq 57800 5 snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 25508 2 snd_pcm,snd_seq
snd_seq_device 11020 4 snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 61876 10
snd_aoa_i2sbus,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_aoa,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 10244 1 snd
snd_aoa_soundbus 9060 1 snd_aoa_i2sbus
$ cat /proc/asound/cards
--- no soundcards ---
=====
Yet, on a Mac Mini with the same kernel and ALSA packages, the drivers
are loaded fine and sound card is reported:
=====
$ uname -a
Linux lily 2.6.26-2-powerpc #1 Sun Jun 21 06:56:26 UTC 2009 ppc GNU/Linux
$ /usr/sbin/alsactl --version
alsactl version 1.0.20
$ dmesg | grep snd
[ 16.148983] snd-aoa-fabric-layout: found bus with layout 58
[ 16.148994] snd-aoa-fabric-layout: Using direct GPIOs
[ 16.153960] snd-aoa-fabric-layout: can use this codec
$ lsmod | grep snd
snd_aoa_codec_toonie 5988 2
snd_aoa_fabric_layout 14408 1
snd_aoa_i2sbus 22820 1
snd_pcm_oss 45248 0
snd_mixer_oss 19360 1 snd_pcm_oss
snd_pcm 79748 2 snd_aoa_i2sbus,snd_pcm_oss
snd_page_alloc 12392 1 snd_pcm
snd_aoa 19840 2 snd_aoa_codec_toonie,snd_aoa_fabric_layout
snd_seq_oss 36756 0
snd_seq_midi 10240 0
snd_rawmidi 26176 1 snd_seq_midi
snd_seq_midi_event 10528 2 snd_seq_oss,snd_seq_midi
snd_seq 57800 5 snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 25508 2 snd_pcm,snd_seq
snd_seq_device 11020 4 snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 61876 14
snd_aoa_codec_toonie,snd_aoa_fabric_layout,snd_aoa_i2sbus,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_aoa,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 10244 1 snd
snd_aoa_soundbus 9060 2 snd_aoa_fabric_layout,snd_aoa_i2sbus
$ cat /proc/asound/cards
0 [SoundByLayout ]: AppleOnbdAudio - SoundByLayout
SoundByLayout
=====
Previously I would have tried the ‘alsaconf’ utility, but that's no
longer provided by Debian's ALSA packages from what I can tell. The
documentation doesn't give any indication what tools take its place, and
‘dpkg-reconfigure --priority low’ doesn't ask any questions for either
of ‘alsa-base’ or ‘alsa-utils’.
What is the necessary procedure to get sound working on my Powermac G4
as it's working on my Mac Mini?
--
\ “For myself, I am an optimist — it does not seem to be much use |
`\ being anything else.” —Winston Churchill, 1954-11-09 |
_o__) |
Ben Finney
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