To open gnome-volume-control on the output tab directly one can use this:
gnome-volume-control -p output
If you only have one option in that tab and can't change anything you might want to see if your card model is being recognized correctly.
echo 'options snd-hda-intel model=7stack' > /etc/modprobe.d/sound.conf
This creates a file named "sound.conf" in /etc/modprobe.d wiith a single line "options snd-hda-intel model=7stack"
You can also try the "model=auto" first it works sometimes if not you need to find the model.
To find out the model for your equipment you can try.
Getting the driver's codec name:
cat /proc/asound/Intel/codec#0 | grep -i codec
cat /proc/asound/*/codec#0 | grep -i codec
• 1 - The path used in cat depends on your sound card, one can look inside /proc/asound to find out the exact path.
‣ Find the model list on http://git.alsa-project.org/ -> alsa-kmirror.git(tree) -> Documentation(tree) -> HD-Audio-Models.txt and check what model your codec is compatible with.