Ubuntu: On reboot headphones are muted


After I upgraded Ubuntu to 15.04 alsamixer mutes my headphones on every reboot. I have tried changing settings in alasamixer and saving it with sudo alsactl store. I've edited file /etc/pulse/default.pa by commenting line #load-module module-switch-on-port-available I've edited file /usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones.conf like this:

[Element Speaker]  ; link to muting  switch = mute  ; set volume to zero, so only the master slider controls playback volume. This gives better linearity.  volume = zero  

But nothing works


I had the same problem on my Dell 27 All in One.

The only workaround for me was to add a command to /etc/rc.local

The steps are:

sudo nano /etc/rc.local  

Add the following command before the exit 0 line

sleep 10 && amixer -q set Headphone 100 unmute  

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