Nigel,
Progress!
SUMMARY
According to the outputs from lsmod below, the net
effect of alsaconf is to remove snd_hda_intel. So,
unless there is more specific advice, I should find how
to prevent loading of snd_hda_intel at startup.
Odd that removing snd_hda_intel makes sound work!
Thanks, ... Peter E.
nh> Which kernel is your Lenny [on IBM NetVista] using?
Currently only 2.6.25-2.
nh> Do you have an earlier kernel available to try, perhaps a 2.6.8, or 2.6.11
I can install one of them if necessary.
nh> When you bootup the IBM NetVista machine with Lenny on it, what do you get
from the following commands.
dalton:~# lsmod | grep snd
snd_hda_intel 309976 0
snd_intel8x0 31740 0
snd_ac97_codec 91300 1 snd_intel8x0
ac97_bus 1952 1 snd_ac97_codec
snd_seq_dummy 3780 0
snd_usb_audio 75936 0
snd_pcm_oss 37824 0
snd_mixer_oss 14880 1 snd_pcm_oss
snd_seq_oss 28544 0
snd_pcm 68228 5
snd_hda_intel,snd_intel8x0,snd_ac97_codec,snd_usb_audio,snd_pcm_oss
snd_usb_lib 15744 1 snd_usb_audio
snd_seq_midi 8064 0
snd_seq_midi_event 6976 2 snd_seq_oss,snd_seq_midi
snd_rawmidi 22528 2 snd_usb_lib,snd_seq_midi
snd_seq 45872 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_hwdep 8708 1 snd_usb_audio
snd_timer 21320 2 snd_pcm,snd_seq
snd_seq_device 7564 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 48772 13
snd_hda_intel,snd_intel8x0,snd_ac97_codec,snd_usb_audio,snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_pcm,snd_rawmidi,snd_seq,snd_hwdep,snd_timer,snd_seq_device
soundcore 7488 1 snd
snd_page_alloc 9992 3 snd_hda_intel,snd_intel8x0,snd_pcm
usbcore 130032 9
asix,usbnet,snd_usb_audio,snd_usb_lib,usbhid,ehci_hcd,ohci_hcd,uhci_hcd
dalton:~# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.16rc2 (Thu Jan 31 16:40:16
2008 UTC).
dalton:~# cat /proc/asound/cards
0 [default ]: USB-Audio - C-Media USB Headphone Set
C-Media USB Headphone Set at usb-0000:00:1f.2-2, full
speed
dalton:~# lspci -v | "pick out sound stuff"
00:1f.3 SMBus: Intel Corporation 82801BA/BAM SMBus Controller (rev 02)
Subsystem: IBM Device 01c6
Flags: medium devsel, IRQ 17
I/O ports at fe00 [size=16]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
00:1f.5 Multimedia audio controller: Intel Corporation 82801BA/BAM AC'97 Audio
Controller (rev 02)
Subsystem: IBM Device 01c6
Flags: bus master, medium devsel, latency 0, IRQ 9
I/O ports at f000 [size=256]
I/O ports at f400 [size=64]
Kernel modules: snd-intel8x0
nh> after running alsaconf, the output of.
dalton:~# lsmod | grep snd
snd_usb_audio 75936 0
snd_usb_lib 15744 1 snd_usb_audio
snd_hwdep 8708 1 snd_usb_audio
snd_intel8x0 31740 0
snd_ac97_codec 91300 1 snd_intel8x0
ac97_bus 1952 1 snd_ac97_codec
snd_pcm_oss 37824 0
snd_mixer_oss 14880 1 snd_pcm_oss
snd_pcm 68228 4
snd_usb_audio,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 3780 0
snd_seq_oss 28544 0
snd_seq_midi 8064 0
snd_rawmidi 22528 2 snd_usb_lib,snd_seq_midi
snd_seq_midi_event 6976 2 snd_seq_oss,snd_seq_midi
snd_seq 45872 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 21320 2 snd_pcm,snd_seq
snd_seq_device 7564 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 48772 12
snd_usb_audio,snd_hwdep,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 7488 1 snd
snd_page_alloc 9992 2 snd_intel8x0,snd_pcm
usbcore 130032 9
snd_usb_audio,snd_usb_lib,asix,usbnet,usbhid,ehci_hcd,ohci_hcd,uhci_hcd
dalton:~# cat /proc/asound/cards
0 [I82801BAICH2 ]: ICH - Intel 82801BA-ICH2
Intel 82801BA-ICH2 with AD1885 at irq 17
1 [default ]: USB-Audio - C-Media USB Headphone Set
C-Media USB Headphone Set at usb-0000:00:1f.2-2, full
speed
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