nVidia drivers 280 hide my built-in sound card?

[linsnos]

Hi!
(This is not really an Ubuntu issue, but since many people use Ubuntu and nVidia drivers, it might be relevant to post here anyway.)

After a fresh install of Ubuntu 11.04 I follow the (non-standard) procedures to make a manual installation of the nVidia drivers, and run NVIDIA-Linux-x86-280.13.run.
After reboot, the graphics works as expected, but my built-in sound card is no longer used.
Instead, an nVidia sound device is used, but my GT240 does not have any sound capabilities (what I am aware of anyway).

It is not listed with aplay -l, but it is listed when I run lspci | grep Audio.
lshw reports my device as "UNCLAIMED".

I have submitted some information below, which might be of relevance. I suspect it could be some kernel module conflict, but I have no clue how to fix it.

If you could help me with this I would be very happy! I want my sound back, and I want it to come from my motherboard!
(Below is selected output from: lspci, aplay, lsmod, lshw, dmesg)

Edit:
more /lib/modules/`uname -r`/modules.alias | grep 'snd' | grep 'nv'
give the line
alias snd-hda-codec-nvhdmi snd_hda_codec_hdmi
Can that give a clue to what to do?

$lspci | grep Audio =>
02:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)
80:01.0 Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 10)

I want to use the bold one, but ALSA does not find it, so that's why I suspect some trouble with module loading.
------------------------------------------------------------------

$aplay -l =>
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0

------------------------------------------------------------------

$lsmod | grep snd =>
Module Size Used by
snd_hda_codec_hdmi 27479 4
snd_hda_intel 24140 0
snd_hda_codec 90901 2 snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep 13274 1 snd_hda_codec
snd_pcm 80244 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25269 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28659 2 snd_pcm,snd_seq
snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 55295 9 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd _hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_s eq_device
soundcore 12600 1 snd
snd_page_alloc 14073 2 snd_hda_intel,snd_pcm

------------------------------------------------------------------

$lshw -c sound =>

*-multimedia
description: Audio device
product: High Definition Audio Controller
vendor: nVidia Corporation
physical id: 0.1
bus info: pci@0000:02:00.1
version: a1
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=HDA Intel latency=0
resources: irq:25 memory:deffc000-deffffff
*-multimedia UNCLAIMED
description: Audio device
product: VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller)
vendor: VIA Technologies, Inc.
physical id: 1
bus info: pci@0000:80:01.0
version: 10
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0

------------------------------------------------------------------

$dmesg (some of the output) =>

12.013240] WARNING: at /build/buildd/linux-2.6.38/drivers/pci/pci.c:118 pci_ioremap_bar+0x57/0x60()
[ 12.013243] Hardware name: MS-7253
[ 12.013244] Modules linked in: snd_hda_codec_hdmi ppdev snd_hda_intel(+) snd_hda_codec snd_hwdep snd_pcm parport_pc snd_seq_midi snd_rawmidi snd_seq_midi_e
vent snd_seq snd_timer snd_seq_device snd k8temp i2c_viapro soundcore snd_page_alloc lp shpchp parport usbhid hid usb_storage uas pata_via via_rhine floppy sa
ta_via
[ 12.013269] Pid: 469, comm: modprobe Tainted: P 2.6.38-8-generic #42-Ubuntu
[ 12.013272] Call Trace:
[ 12.013279] [<c104f912>] ? warn_slowpath_common+0x72/0xa0
[ 12.013282] [<c128fa07>] ? pci_ioremap_bar+0x57/0x60
[ 12.013285] [<c128fa07>] ? pci_ioremap_bar+0x57/0x60
[ 12.013289] [<c104f962>] ? warn_slowpath_null+0x22/0x30
[ 12.013292] [<c128fa07>] ? pci_ioremap_bar+0x57/0x60
[ 12.013299] [<f8d417cc>] ? azx_create+0x330/0x71a [snd_hda_intel]
[ 12.013305] [<f8d41ded>] ? azx_probe+0xa4/0x20f [snd_hda_intel]
[ 12.013309] [<c1291f77>] ? local_pci_probe+0x47/0xb0
[ 12.013313] [<c12933f8>] ? pci_device_probe+0x68/0x90
[ 12.013317] [<c1333d8d>] ? really_probe+0x4d/0x150
[ 12.013321] [<c133bffb>] ? pm_runtime_barrier+0x4b/0xb0
[ 12.013325] [<c133402c>] ? driver_probe_device+0x3c/0x60
[ 12.013328] [<c13340d1>] ? __driver_attach+0x81/0x90
[ 12.013331] [<c1334050>] ? __driver_attach+0x0/0x90
[ 12.013334] [<c1333188>] ? bus_for_each_dev+0x48/0x70
[ 12.013337] [<c1292e00>] ? pci_device_remove+0x0/0xf0
[ 12.013340] [<c1333c3e>] ? driver_attach+0x1e/0x20
[ 12.013343] [<c1334050>] ? __driver_attach+0x0/0x90
[ 12.013346] [<c1333858>] ? bus_add_driver+0xb8/0x250
[ 12.013349] [<c1292e00>] ? pci_device_remove+0x0/0xf0
[ 12.013352] [<c1334316>] ? driver_register+0x66/0x110
[ 12.013355] [<c1292515>] ? __pci_register_driver+0x45/0xb0
[ 12.013361] [<f8d47017>] ? alsa_card_azx_init+0x17/0x1000 [snd_hda_intel]
[ 12.013364] [<c1001255>] ? do_one_initcall+0x35/0x170
[ 12.013369] [<f8d47000>] ? alsa_card_azx_init+0x0/0x1000 [snd_hda_intel]
[ 12.013374] [<c108899b>] ? sys_init_module+0xdb/0x230
[ 12.013380] [<c1509bf4>] ? syscall_call+0x7/0xb
[ 12.013382] ---[ end trace 77ab60665e12c426 ]---
[ 12.013384] hda-intel: ioremap error
[ 12.013394] HDA Intel 0000:80:01.0: PCI INT A disabled
[ 12.744651] nvidia 0000:02:00.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24
[ 12.744662] nvidia 0000:02:00.0: setting latency timer to 64
[ 12.744668] vgaarb: device changed decodes: PCI:0000:02:00.0,olddecodes=io+mem,decodes=nonewns=io+mem
[ 12.744960] NVRM: loading NVIDIA UNIX x86 Kernel Module 280.13 Wed Jul 27 16:55:43 PDT 2011