Pas de son sous ubuntu

Bonjour,
j'ai installer ubuntu gnome 10/9
mais je n'ai pas de son??
voila ce que j'ai


lsmod


Module Size Used by
xt_limit 2176 8
xt_tcpudp 2780 7
ipt_LOG 5344 8
ipt_MASQUERADE 2204 0
xt_DSCP 2844 0
ipt_REJECT 2812 1
nf_conntrack_irc 4992 0
nf_conntrack_ftp 6880 0
xt_state 1820 6
binfmt_misc 8356 1
ppdev 6688 0
joydev 10272 0
iptable_nat 5500 0
nf_nat 17808 2 ipt_MASQUERADE,iptable_nat
snd_hda_codec_si3054 4636 1
nf_conntrack_ipv4 13352 9 iptable_nat,nf_nat
snd_hda_codec_realtek 203328 1
nf_conntrack 67608 7 ipt_MASQUERADE,nf_conntrack_irc,nf_conntrack_ftp,xt_state,iptable_nat,nf_nat,nf_conntrack_ipv4
nf_defrag_ipv4 1756 1 nf_conntrack_ipv4
iptable_mangle 3452 0
snd_hda_intel 26920 2
snd_hda_codec 75708 3 snd_hda_codec_si3054,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 7200 1 snd_hda_codec
snd_pcm_oss 37920 0
snd_mixer_oss 16028 1 snd_pcm_oss
snd_pcm 75296 4 snd_hda_codec_si3054,snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy 2656 0
arc4 1660 2
snd_seq_oss 28576 0
ecb 2524 2
iptable_filter 3100 1
snd_seq_midi 6432 0
snd_rawmidi 22208 1 snd_seq_midi
snd_seq_midi_event 6940 2 snd_seq_oss,snd_seq_midi
snd_seq 50224 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 22276 2 snd_pcm,snd_seq
snd_seq_device 6920 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
ip_tables 11692 3 iptable_nat,iptable_mangle,iptable_filter
x_tables 16544 9 xt_limit,xt_tcpudp,ipt_LOG,ipt_MASQUERADE,xt_DSCP,ipt_REJECT,xt_state,iptable_nat,ip_tables
rt2500pci 15356 0
rt2x00pci 7900 1 rt2500pci
rt2x00lib 29756 2 rt2500pci,rt2x00pci
pcmcia 36808 0
psmouse 56500 0
serio_raw 5280 0
uli526x 15564 0
snd 59204 17 snd_hda_codec_si3054,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 7264 1 snd
snd_page_alloc 9156 2 snd_hda_intel,snd_pcm
i2c_ali15x3 6336 0
i2c_ali1535 5792 0
tifm_7xx1 5372 0
tifm_core 7832 1 tifm_7xx1
sdhci_pci 7100 0
sdhci 17472 1 sdhci_pci
led_class 4096 2 rt2x00lib,sdhci
input_polldev 3716 1 rt2x00lib
mac80211 181076 2 rt2x00pci,rt2x00lib
cfg80211 93052 2 rt2x00lib,mac80211
eeprom_93cx6 1916 1 rt2500pci
k8temp 4188 0
shpchp 32272 0
yenta_socket 24200 1
rsrc_nonstatic 11644 1 yenta_socket
pcmcia_core 35792 3 pcmcia,yenta_socket,rsrc_nonstatic
lp 8964 0
parport 35340 2 ppdev,lp
dm_raid45 84228 0
xor 15620 1 dm_raid45
radeon 636000 2
ttm 36212 1 radeon
drm 159584 4 radeon,ttm
i2c_algo_bit 5760 1 radeon
ati_agp 6760 0
agpgart 34988 3 ttm,drm,ati_agp
ohci1394 29900 0
ieee1394 86596 1 ohci1394

et encore si utile ??

gnome35:~$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:10.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
00:10.2 FireWire (IEEE 1394): Texas Instruments OHCI Compliant IEEE 1394 Host Controller
00:10.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
00:10.4 SD Host controller: Texas Instruments PCI6411/6421/6611/6621/7411/7421/7611/7621 Secure Digital Controller
00:11.0 Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
00:19.0 PCI bridge: ALi Corporation M5249 HTT to PCI Bridge
00:1b.0 Ethernet controller: ALi Corporation ULi 1689,1573 integrated ethernet. (rev 50)
00:1c.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:1c.1 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:1c.2 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:1c.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01)
00:1d.0 Audio device: ALi Corporation High Definition Audio/AC'97 Host Controller
00:1e.0 ISA bridge: ALi Corporation PCI to LPC Controller (rev 31)
00:1e.1 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:1f.0 IDE interface: ALi Corporation M5229 IDE (rev c7)
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon XPRESS 200M 5955 (PCIE)
gnome35:~$


je n'ai aucun bug , mais seulement pas de son

pas vraiment a l'aise avec des lignes de commandes , je penses qu'avec ce que j'ai tapez ci dessous
j'ai rien d'associer avec alsa ou ?? quoi d'autre possible .

gnome35:~$ lsof /dev/snd/pcm*
gnome35:~$ lsof /dev/dsp
gnome35:~$

je m'attendais a un truc avec package d'installation semi automatique pour les logiciels pour la carte son
maisla c'est un peu hard pour moi

merci si quelqu'un à le temps de m'aider