Audio woes on F11

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Hi, I've got an M-Audio Audiophile 2496 card (ICE1712 chip) running on
an AMD 64 bit CPU (can't remember exact model right now). I originally
installed F11 x86_64 and had a few sound problems, but it worked if I
disabled pulse audio.

I've just had to install the 32-bit version of Fedora 11 due to some
work constraints (long story!). Now I can't get audio to work at all.

Firstly, my user was not part of the pulse-rt group so I added myself
manually. This didn't happen when I installed the x86_64 version on
the same PC which seems strange.

Secondly, I can't get audio to work at all. I've checked the Advance
Volume Control and turned everything up. /var/log/messages shows the
following:

Jun 30 21:33:20 localhost pulseaudio[2106]: module-alsa-card.c: Failed
to find a working profile.
Jun 30 21:33:20 localhost pulseaudio[2106]: module.c: Failed to load
module "module-alsa-card" (argument: "device_id=0
name=usb_device_944_103_noserial_if0_sound_card_0
card_name=alsa_card.usb_device_944_103_noserial_if0_sound_card_0
tsched=1"): initialization failed.

Not quite sure why it mentions USB device since it's a PCI card.

lsmod shows the right module amongst the others although it's not used:

snd_ice1712            52724  0
snd_ice17xx_ak4xxx      2956  1 snd_ice1712
snd_ak4xxx_adda         7040  2 snd_ice1712,snd_ice17xx_ak4xxx
snd_cs8427              6652  1 snd_ice1712
snd_ac97_codec         91576  1 snd_ice1712
snd_usb_audio          74972  0
snd_pcm                62632  3 snd_ice1712,snd_ac97_codec,snd_usb_audio
snd_timer              17888  1 snd_pcm
ac97_bus                1400  1 snd_ac97_codec
snd_i2c                 4336  2 snd_ice1712,snd_cs8427
snd_page_alloc          7644  1 snd_pcm
snd_mpu401_uart         6316  1 snd_ice1712
snd_usb_lib            14128  1 snd_usb_audio
snd_rawmidi            18728  2 snd_mpu401_uart,snd_usb_lib
snd_seq_device          5988  1 snd_rawmidi
snd_hwdep               6584  1 snd_usb_audio
snd                    49056  13
snd_ice1712,snd_ak4xxx_adda,snd_cs8427,snd_ac97_codec,snd_usb_audio,snd_pcm,snd_timer,snd_i2c,snd_mpu401_uart,snd_usb_lib,snd_rawmidi,snd_seq_device,snd_hwdep
soundcore               5404  1 snd

Whenever I try to run alsamixer or pavucontrol when pulse is not
running, I get this:

shm_open() failed: No such file or directory
ALSA lib pulse.c:272:(pulse_connect) PulseAudio: Unable to connect: Connection
efused


alsamixer: function snd_ctl_open failed for default: Connection refused

Maybe that's expected since pulse is not running.

I should also mention that I dual-boot Windows and it works fine there.

So, any ideas or recommendations for how to investigate?

Thanks in advance, Chris.

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