I have a new sony vaio and it came with windows 8 instaled, it is not supposed to change the operative system but i changet it anyways...

the problem is when i try to use the speacheeers, microfone or the webcam, for the sound problem is just the speachers because if i connect the earphones it works perfectly.

if i go to the sound config it finds the dummy output, i tried with alsamixer and is not muted, reinstaled it and still doesn't works.

i read that it might be related with the kernel but didn't find the solution that way either.

thanks for the help!