Sony Vaio Fit with Ubuntu 12.04, sound missing

The speakers in my Sony Vaio Fit SVF15A1C5E don't work, while headphones do.

lspci -nn|egrep 'ultimedia|udio|sound|AC97|ac97|EMU':

00:1b.0 Audio device [0403]: Intel Corporation Panther Point High Definition Audio Controller [8086:1e20] (rev 04)

aplay -l:

\**** List of PLAYBACK Hardware Devices \****
card 0: PCH [HDA Intel PCH], device 0: HDA Generic [HDA Generic]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

cat /proc/asound/car*/co* | grep Codec:

Codec: Realtek ID 233
Codec: Intel PantherPoint HDMIow to proceed

Adding

options snd-hda-intel enable=1 index=0 model=basic

in /etc/modprobe.d/alsa-base.conf doesn't help.

Other suggestions?

I had the same problem (headphones working fine, but no audio from internal speakers) with the same audio specs under Ubuntu 13.04, Linux kernel 3.8.

I updated the alsa drivers according to the instructions given in the Ubuntu help wiki page on Alsa for my kernel version.

After installation of the new drivers (package oem-audio-hda-daily-lts-raring-dkms) and reboot, the sound worked perfectly.

As your headphones work, Linux has your sound hardware driver. Sound issues in Linux are mostly because of bad mixer status.

Install and check alsamixer or pavucontrol and check the mixer. In mixers look for any muted volumes and also test right/left sliders; sometimes some sound hardware (mostly microphones) only works when mixer is set to only left channel.