i have intalled ubuntu 14.04 on my Acer Aspire 1690 wich has sound driver
Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 04)
the problem that this doesn't sound. Alsamixer says:
card: Intel ICH6
chip: Conexant Cx20468-31
The master, headphone, PCM and line volumen are on. Also try to use a usb audio card and neither it work.