alsamixer is working fine and recognizes my devices and audio card.
It was because I mounted my
/home folder at my ntfs partition with default options, and pulseaudio wasn't being able to start because my home folder's owner was root.
chown didn't work in this case, changed the mount options in
/etc/fstab from this:
defaults 0 2
uid:1000,gid:1000,umask:0000 0 2
That probably brings me security issues and would give me issues with having other users, but it is working as expected and I am the only user in my computer.