# lspcidrake -v | fgrep -i AUDIO
snd_intel8x0    : Intel Corporation|82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller [MULTIMEDIA_AUDIO] (vendor:8086 device:24d5 subv:1028 subd:0151) (rev: 02)

# grep sound-slot /etc/modprobe.conf
alias sound-slot-0 snd_intel8x0

# lsmod | sort
ac97_bus               12670  1 snd_ac97_codec
af_packet              30650  0 
ahci                   25496  0 
ata_piix               22146  8 
auth_rpcgss            39266  2 nfsd,nfs
autofs4                37410  3 
button                 13561  1 i915
cpufreq_conservative    13495  0 
cpufreq_ondemand       13452  0 
cpufreq_powersave      12554  0 
crc_t10dif             12507  1 sd_mod
dcdbas                 14409  0 
dm_log                 18111  2 dm_region_hash,dm_mirror
dm_mirror              21654  0 
dm_mod                 71824  2 dm_log,dm_mirror
dm_region_hash         15977  1 dm_mirror
drm                   208242  3 drm_kms_helper,i915
drm_kms_helper         32743  1 i915
e1000                 124291  0 
ehci_hcd               55582  0 
evdev                  17445  4 
exportfs               12842  1 nfsd
ext3                  192694  4 
fat                    55309  1 msdos
freq_table             14322  2 p4_clockmod,cpufreq_ondemand
fscache                59501  1 nfs
fuse                   72055  4 
i2c_algo_bit           13080  1 i915
i2c_core               29836  5 drm,drm_kms_helper,i2c_algo_bit,i915,i2c_i801
i2c_i801               17506  0 
i915                  414066  2 
ipv6                  282311  46 
iTCO_vendor_support    13502  1 iTCO_wdt
iTCO_wdt               17652  0 
jbd                    68210  1 ext3
libahci                25805  1 ahci
libata                183151  4 sata_sil,ata_piix,libahci,ahci
lockd                  74024  2 nfsd,nfs
Module                  Size  Used by
msdos                  17132  1 
nfs                   287478  4 
nfs_acl                12733  2 nfsd,nfs
nfsd                  227059  11 
nls_cp437              12751  1 
p4_clockmod            12992  0 
pci_hotplug            33983  1 shpchp
processor              30340  0 
rng_core               13100  0 
sata_sil               13245  0 
scsi_mod              186048  3 libata,sr_mod,sd_mod
sd_mod                 43934  9 
shpchp                 32188  0 
snd                    65929  8 snd_timer,snd_pcm,snd_ac97_codec,snd_intel8x0
snd_ac97_codec        105633  1 snd_intel8x0
snd_intel8x0           33101  2 
snd_page_alloc         14036  2 snd_pcm,snd_intel8x0
snd_pcm                88532  2 snd_ac97_codec,snd_intel8x0
snd_timer              28598  1 snd_pcm
soundcore              14599  1 snd
speedstep_lib          13921  1 p4_clockmod
sr_mod                 21872  0 
sunrpc                203822  26 auth_rpcgss,lockd,nfs_acl,nfsd,nfs
uhci_hcd               31495  0 
usb_common             12525  1 usbcore
usbcore               177071  3 uhci_hcd,ehci_hcd
video                  18640  1 i915

# aumix -q
Failed to issue method call: No such file or directory

# /sbin/fuser -v /dev/dsp
Specified filename /dev/dsp does not exist.