No sound from internal speakers on HP Touchsmart 600-1130de (alc888)

[Jesus Rodriguez Marcial <faibistes@xxxxxxxxx>]

It's a pretty common problem with touchsmarts, I guess that sound works
from the other outputs (it works for other people), but didn't even
bother to test, I'm not interested in them, I just want the internal
speakers to work.

There is an additional usb audio attached. It works perfectly, and
detaching it makes no difference.

Being forced to plug cables to an all-in-one system is incredibly
frustrating. WAF goes from 11 to almost 0.

Some relevant info:

Ubuntu 12.10

lspci -v
[...]
00:08.0 Audio device: NVIDIA Corporation MCP79 High Definition Audio
(rev b1)
        Subsystem: Hewlett-Packard Company Device 2a9
Being forced to plug cables to 5
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
        Memory at fae78000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] Power Management version 2
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd-hda-intel

[...]

lsmod | grep snd
> snd_hrtimer            12648  1
> snd_hda_codec_realtek    63356  1
> snd_usb_audio         105028  1
> snd_hda_intel          32515  4
> snd_hda_codec         111547  2 snd_hda_codec_realtek,snd_hda_

intel
> snd_pcm                80163  4 snd_usb_audio,snd_hda_intel,snd_hda_codec
> snd_hwdep              13272  2 snd_usb_audio,snd_hda_codec
> snd_usbmidi_lib        24225  1 snd_usb_audio
> snd_seq_midi           13132  0
> snd_rawmidi            25382  2 snd_usbmidi_lib,snd_seq_midi
> snd_seq_midi_event     14475  1 snd_seq_midi
> snd_seq                51255  3 snd_seq_midi,snd_seq_midi_event
> snd_timer              24411  3 snd_hrtimer,snd_pcm,snd_seq
> snd_seq_device         14137  3 snd_seq_midi,snd_rawmidi,snd_seq
> snd                    61991  21 snd_hda_codec_realtek,snd_usb_audio,snd_hda_intel,snd_hda_codec,snd_pcm,snd_hwdep,snd_usbmidi_lib,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
> snd_page_alloc         14036  2 snd_hda_intel,snd_pcm
> soundcore              14599  1 snd

cat /etc/modprobe.d/alsa-base.conf

# autoloader aliases
install sound-slot-0 /sbin/modprobe snd-card-0
install sound-slot-1 /sbin/modprobe snd-card-1
install sound-slot-2 /sbin/modprobe snd-card-2
install sound-slot-3 /sbin/modprobe snd-card-3
install sound-slot-4 /sbin/modprobe snd-card-4
install sound-slot-5 /sbin/modprobe snd-card-5
install sound-slot-6 /sbin/modprobe snd-card-6
install sound-slot-7 /sbin/modprobe snd-card-7

# Cause optional modules to be loaded above generic modules
install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS &&
{ /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe
--quiet --use-blacklist snd-seq ; }
#
# Workaround at bug #499695 (reverted in Ubuntu see LP #319505)
install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS &&
{ /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; }
install snd-mixer /sbin/modprobe --ignore-install snd-mixer
$CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist
snd-mixer-oss ; : ; }
install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS &&
{ /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe
--quiet --use-blacklist snd-seq-oss ; : ; }
#
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi
$CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist
snd-seq-midi ; : ; }
# Cause optional modules to be loaded above sound card driver modules
install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1
$CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist
snd-emu10k1-synth ; }
install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx
$CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }

# Load saa7134-alsa instead of saa7134 (which gets dragged in by it
anyway)
install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS &&
{ /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; }
# Prevent abnormal drivers from grabbing index 0
options bt87x index=-2
options cx88_alsa index=-2
options saa7134-alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-usb-audio index=-2
options snd-usb-caiaq index=-2
options snd-usb-ua101 index=-2
options snd-usb-us122l index=-2
options snd-usb-usx2y index=-2
# Ubuntu #62691, enable MPU for snd-cmipci
options snd-cmipci mpu_port=0x330 fm_port=0x388
# Keep snd-pcsp from being loaded as first soundcard
options snd-pcsp index=-2
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
#options snd-hda-intel model=3stack-hp
alias snd-card-0 snd-hda-intel
options snd-hda-intel model=touchsmart

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