Does Linux Have 4 Speakers support
 

well i have Redhat Linux 8.0
the sound is working perfect but i want to use the line in pin for my other speakers.
Does linux have such support and how can i config such thing

yo need a mixer

where can i get one.
if u mean the one that comes with the driver then i have installed it but still only 2 speakers work

Depends on your hardware and distro's driver.
You can search it here:

www.alsa-project.org
www.opensound.com
http://opensource.creative.com


Have a lot of fun :-)