Headphones not working in Ubuntu 12.10

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http://askubuntu.com – I've tried multiple ways to solve my problem as described in other topics in this forum, but none suceeded. The Headphones sound worked when I first installed Ubuntu 12.10, but after a few updates it ceased to function. Sound works fine with the speakers but as soon as I insert the jack, there is nothing but silence... I've checked Alsamixer and when I insert the jack it mutes the speakers but not the Headphones column... I've even tried installing the drivers from realtek but it was a very bad idea since it crashed my OS completely and I had to reinstall everything. I'm a bit on the newbie in (HowTos)