No sound for new sony vaio PCG-TR2C

The system is for my window fan friend whom i convinced to give ubuntu a try .. so i helped him install xubuntu .. everything worked like a charm except his webcam and sound.. for now sound is his biggest issue and i would be happy if anyone can help me with tips on how to make sound work on this system....

on windows device manager claims the sound driver is Sound Max intergrated Digital Audio controller .. but when i did

lsmod

Module Size Used by
i915 25856 1
drm 83348 2 i915
sony_laptop 32088 0
sonypi 23960 0
ppdev 10244 0
snd_atiixp_modem 17544 0
snd_via82xx_modem 16392 0
snd_intel8x0m 18956 5
speedstep_centrino 8256 0
cpufreq_powersave 2688 0
cpufreq_stats 7232 0
cpufreq_conservative 8072 0
cpufreq_userspace 5280 0
cpufreq_ondemand 9612 1
freq_table 5792 3 speedstep_centrino,cpufreq_stats,cpufreq_ondemand
video 18060 0
battery 11012 0
button 8976 0
dock 10656 0
ac 6148 0
container 5504 0
sbs 19592 0
sbp2 24072 0
parport_pc 37412 0
lp 12580 0
parport 37448 3 ppdev,parport_pc,lp
loop 19076 0
snd_intel8x0 35356 1
snd_ac97_codec 101668 4 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_intel8x0
ac97_bus 3200 1 snd_ac97_codec
snd_pcm_oss 43136 0
snd_mixer_oss 17792 1 snd_pcm_oss
snd_pcm 80388 8 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
pcmcia 41388 0
snd_seq_dummy 4868 0
snd_seq_oss 34944 0
joydev 11328 0
snd_seq_midi 9600 0
ipw2100 72240 0
snd_rawmidi 25984 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
yenta_socket 27532 1
rsrc_nonstatic 14080 1 yenta_socket
ieee80211 35656 1 ipw2100
ieee80211_crypt 7040 1 ieee80211
snd_seq 54000 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
pcmcia_core 40980 3 pcmcia,yenta_socket,rsrc_nonstatic
snd_timer 24452 2 snd_pcm,snd_seq
snd_seq_device 9484 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 56068 24 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8800 1 snd
serio_raw 8068 0
snd_page_alloc 11400 5 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_intel8x0,snd_pcm
iTCO_wdt 11940 0
iTCO_vendor_support 4868 1 iTCO_wdt
psmouse 39952 0
shpchp 34580 0
pci_hotplug 32704 1 shpchp
intel_agp 25620 1
agpgart 35016 3 drm,intel_agp
ipv6 273892 8
evdev 11136 8
usb_storage 73024 0
ide_core 116804 1 usb_storage
usbhid 29536 0
hid 28928 1 usbhid
ext3 133896 1
jbd 60456 1 ext3
mbcache 9732 1 ext3
libusual 18448 1 usb_storage
sg 36764 0
sr_mod 17828 0
cdrom 37536 1 sr_mod
sd_mod 30336 3
ata_piix 17540 2
ata_generic 8452 0
libata 125168 2 ata_piix,ata_generic
scsi_mod 147084 6 sbp2,usb_storage,sg,sr_mod,sd_mod,libata
e100 37644 0
mii 6528 1 e100
ohci1394 36528 0
ieee1394 96312 2 sbp2,ohci1394
ehci_hcd 36492 0
uhci_hcd 26640 0
usbcore 138632 6 usb_storage,usbhid,libusual,ehci_hcd,uhci_hcd
thermal 14344 0
processor 32072 1 thermal
fan 5764 0
fuse 47124 1
apparmor 40728 0
commoncap 8320 1 apparmor
ay@ay-pc:~$

lspci

00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
02:05.0 CardBus bridge: Ricoh Co Ltd RL5c475 (rev b8)
02:05.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C551 IEEE 1394 Controller
02:08.0 Ethernet controller: Intel Corporation 82801DB PRO/100 VE (MOB) Ethernet Controller (rev 83)
02:0b.0 Network controller: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter (rev 04)