I purchased a soundblaster card and was trying to get it working with 7.1 speaker system. problem is only 2 front speakers work in 2.1 mode.i tried selscting 7.1 channels in amarok. didnt work, made sure all the volumes were up , didnt work. tried using this guide from ubuntu forums
http://ubuntuforums.org/showthread.php?t=19307 tried all those work around, still nothing. what can i do. i also made sure the onboard sound was turned off in bios. im really sad bcse i wanted this card to work.