Headphones not working, but speakers work fine

yesterday everything was great, but today after booting up headphones failed to work.
ubuntu 16.04LTS on asus icore7

alsamixer

added this to/etc/modprobe.d/alsa-base.conf :
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
options snd-pcsp index=-2
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=laptop
options snd-hda-intel position_fix=1 enable=yes
..
still not working
All the info here > http://ift.tt/2b7pwx1
..

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Headphones not working, but speakers work fine