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I have a problem on my Sony Vaio Fit 15 E (SVF1521C5E) running Ubuntu 12.04.02 x64. In particular I can't hear any sound from my speakers. I have no problem to listen with the headphones.

My hardware is the following:

$ lspci -nn|egrep 'ultimedia|udio|sound|AC97|ac97|EMU'
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller    (rev 04)

$ aplay -l
**** Lista di PLAYBACK dispositivi hardware ****
scheda 0: PCH [HDA Intel PCH], dispositivo 0: HDA Generic [HDA Generic]
Sottoperiferiche: 1/1
Sottoperiferica #0: subdevice #0
scheda 0: PCH [HDA Intel PCH], dispositivo 3: HDMI 0 [HDMI 0]
Sottoperiferiche: 1/1
Sottoperiferica #0: subdevice #0


$ cat /proc/asound/car*/co* |  grep Codec
Codec: Realtek ID 233
Codec: Intel PantherPoint HDMI
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1 Answer

up vote 0 down vote accepted

I solved the problem upgrading my ALSA drivers:

https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS

Simple and fast. Now the sound works fine!

P.S. For more informations you can see this question:

Sony vaio fit with ubuntu 12.04, sound missing

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