Ubuntu 9.10 can not recognize intel sound card

At my LG P1 with an Intel sound card (Realtek ALC888 Intel 82801), after upgrading to Ubuntu 9.10 Karmic Koala, i had no sound.
The sound card wasn't even detected!

After running Google for a FEW hours, i discovered how to put the sound working without had to:
qaz@blue:~$ sudo alsa force-reload
or any other command.

Step1:
$ sudo apt-get remove sl-modem-daemon
Step2:
$ sudo apt-get install linux-backports-modules-alsa-karmic-generic
Step3:
$ sudo gedit /etc/modprobe.d/alsa-base
And add:
options snd-hda-intel model=lg # for other brands: search google with "options snd-hda-intel model="; try laptop; And/or visit this page.
Then reboot!


Tags:
qaz@blue:~$ lspci
(...)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
(...)

qaz@blue:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC880 Analog [ALC880 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC880 Digital [ALC880 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
 

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