Toshiba Satellite L655 headphone jack not work with F15

[longhuflit]

Hi everyone !
I use Toshiba Satellite L655 laptop with Fedora core 15 .
Everything is perfectly but when i pluged my headphone there are no sound.
I check again, F15 can detect sound card and play music nomally. i try everything but headphone jack still not work.
I use Windows it working normally .
I need help to resolve this problem . Can anyone help me, please!
Sorry about my poor English.
Thanks

[flyingfsck]

Open a mixer and play with all the buttons and sliders, including the External Amplifier switch(es).

[longhuflit]

thanks but it still not working

[mibrito]

Probe install those packages yum install alsa-plugins-jack pulseaudio-module-jack work perfect for me in my HP laptop, and switch audio perfectly. Post the result

[sea]

Just to be sure..
Everything works perfect but not the headphones...
This means: You hear sound, plug in your headphones, and then there is silence?

Sidenote: i didnt have any issues with my headphones from my Sateliite L670.
Actualy, it worked even better than it did with windows.

IF alsa doesnt work for you, try pulse instead.