Thanks all, it works using this
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/996520
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https://bugs.launchpad.net/bugs/1041854
Title:
[A5E, Realtek ALC880, Black Headphone O
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https://bugs.launchpad.net/bugs/1041854
Title:
[A5E, Realtek ALC880, Black Headphone Out, Rear] No sound at all
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Public bug reported:
The sound works well but if i put a headphone the sound not work at all.
I have Asus A5E
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic i686
AlsaVersion