kernel upgrade and p5B deluxe audio problems

[Fred Schaer]

Hi,

I upgraded my system yesterday, and it seems that booting with the new 
kernel 2.6.17-11-generic, I have no more "standard" sound... only front 
headphones seem to work ???

The intel HD audio controller is still detected and shown using lspci :
00:1b.0 Audio device: Intel Corporation HD Audio Controller (rev 02)

Any idea ?
Thanks

p.s :
lsmod :

fred at Rominet:~$ lsmod
Module                  Size  Used by
joydev                 11200  0
usbhid                 45152  0
xfs                   621272  1
nls_cp437               6912  0
isofs                  38076  0
udf                    89348  0
rfcomm                 42260  0
l2cap                  27136  5 rfcomm
bluetooth              53476  4 rfcomm,l2cap
xt_physdev              3600  2
ipt_TCPMSS              5376  1
xt_limit                3840  8
xt_tcpudp               4480  34
ip_nat_irc              3840  0
ip_nat_ftp              4736  0
iptable_nat             8964  1
iptable_mangle          3968  0
ipt_LOG                 8320  8
ipt_MASQUERADE          4864  1
ip_nat                 19884  4 
ip_nat_irc,ip_nat_ftp,iptable_nat,ipt_MASQUERADE
ipt_TOS                 3456  0
ipt_REJECT              6784  1
ip_conntrack_irc        7920  1 ip_nat_irc
ip_conntrack_ftp        8816  1 ip_nat_ftp
xt_state                3328  8
ip_conntrack           53216  8 
ip_nat_irc,ip_nat_ftp,iptable_nat,ipt_MASQUERADE,ip_nat,ip_conntrack_irc,ip_conntrack_ftp,xt_state
nfnetlink               8216  2 ip_nat,ip_conntrack
iptable_filter          4224  1
ip_tables              15204  3 iptable_nat,iptable_mangle,iptable_filter
x_tables               16132  11 
xt_physdev,ipt_TCPMSS,xt_limit,xt_tcpudp,iptable_nat,ipt_LOG,ipt_MASQUERADE,ipt_TOS,ipt_REJECT,xt_state,ip_tables
speedstep_centrino      9760  1
cpufreq_userspace       5408  0
cpufreq_stats           7744  0
freq_table              6048  2 speedstep_centrino,cpufreq_stats
cpufreq_powersave       2944  0
cpufreq_ondemand        8876  2
cpufreq_conservative     8712  0
video                  17540  0
tc1100_wmi              8324  0
sbs                    16804  0
sony_acpi               6412  0
pcc_acpi               14080  0
i2c_ec                  6272  1 sbs
hotkey                 11556  0
dev_acpi               12292  0
button                  7952  0
battery                11652  0
container               5632  0
ac                      6788  0
asus_acpi              17688  0
sbp2                   24584  0
parport_pc             37796  0
lp                     12964  0
parport                39496  2 parport_pc,lp
ipv6                  272288  10
bt878                  12472  0
tuner                  54828  0
tsdev                   9152  0
bttv                  176116  1 bt878
video_buf              27652  1 bttv
nvidia               4554836  12
ir_common              28548  1 bttv
via_rhine              26116  0
compat_ioctl32          2432  1 bttv
i2c_algo_bit           10376  1 bttv
snd_hda_intel          20116  2
snd_hda_codec         164608  1 snd_hda_intel
mii                     6912  1 via_rhine
v4l2_common            17280  2 tuner,bttv
btcx_risc               6280  1 bttv
tveeprom               16144  1 bttv
videodev               10752  1 bttv
sg                     37404  0
snd_pcm_oss            47360  0
snd_mixer_oss          19584  1 snd_pcm_oss
psmouse                41352  0
i2c_core               23424  6 
i2c_ec,tuner,bttv,nvidia,i2c_algo_bit,tveeprom
snd_pcm                84612  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
serio_raw               8452  0
hw_random               7320  0
intel_agp              26012  1
snd_timer              25348  1 snd_pcm
floppy                 63044  0
evdev                  11392  1
pcspkr                  4352  0
shpchp                 42144  0
pci_hotplug            32828  1 shpchp
agpgart                34888  2 nvidia,intel_agp
snd                    58372  10 
snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              11232  1 snd
snd_page_alloc         11400  2 snd_hda_intel,snd_pcm
ext3                  142856  4
jbd                    62228  1 ext3
raid0                   9728  1
raid1                  25600  2
md_mod                 82836  5 raid0,raid1
dm_mirror              23888  2
dm_mod                 62872  7 dm_mirror
ohci1394               37040  0
ieee1394              306104  2 sbp2,ohci1394
ehci_hcd               34696  0
uhci_hcd               24968  0
usbcore               134912  4 usbhid,ehci_hcd,uhci_hcd
ide_generic             2432  0
ide_cd                 33696  0
cdrom                  38944  1 ide_cd
ide_disk               18560  2
jmicron                 5504  0 [permanent]
generic                 6276  0
sd_mod                 22656  13
ahci                   20356  13
libata                 74892  1 ahci
scsi_mod              144648  5 sbp2,sg,sd_mod,ahci,libata
thermal                15624  0
processor              31560  2 speedstep_centrino,thermal
fan                     6020  0
capability              5896  0
commoncap               8704  1 capability
vesafb                  9244  1
fbcon                  41504  72
tileblit                3840  1 fbcon
font                    9344  1 fbcon
bitblit                 7168  1 fbcon
softcursor              3328  1 bitblit