For you reference. I have done testing on the following units
and have the reported the results of various Linux installs.

Redhat 9.0

Video - Auto Detected

Sound - Auto Detected

Modem - Required http://www.smlink.com/download/Linux/slmdm-2.7.14.tar.gz

USB - Auto Detected

100Mbit LAN - Auto Detected

Wireless Lan - Not detected no driver at this time.

Redhat 8

Locks Up upon boot

Redhat 7.3

Video - Detects but has major screen redrawing issues

Sound - Not Detected

Modem - Required http://www.smlink.com/download/Linux/slmdm-2.7.14.tar.gz

USB - Auto Detected

100Mbit LAN - Auto Detected

Wireless Lan - Not detected no driver at this time.