Solved/Workaround - Not sure if there is a better or more correct way, but this worked... In alsamixer I found "Independ" which was ON - pressed up/down to make it OFF and got sound out of the from headphonesLooks like I have the same problem...
Rear output works but front headphone output does not (although connecting tothe front headphone output is "seen" as the the rear output stops)!
64bit 12.04 Server
Gigabyte H77M-D3H motherboard with Intel i7 3770
Tried adding the line to the .conf file