The jack plug on my built-in sound card in my notebook doesn't work so I have to use an external one via a USB port. Since I bought it I only used Windows and it worked fine, but when yesterday I finally made a nice Arch Linux, I wanted to listen some music, I plugged in my sound card with my speakers, but it was terribly quiet. The built-in speaker is fine... or actually it's too loud. I thought I made a mistake, tho I've done everything according to the Arch wiki (begginer's guide, pulseaudio, gnome 3). First I thought it's because of gnome 3 so I tried it on an openSUSE live cd with gnome 2 and Fedora 15 prerelease with gnome 3, but it was the same.
Since all of these use pulseaudio (afaik) I think it's the reason, but I haven't found anything in the forums or the wikis.
Can anyone tell me what I should do with it to work correctly?