Hi,
The logs are showing that an ASMedia USB 3.0 host controller is present:
Name: ASMedia XHCI Controller
Driver Provider: ASMedia Technology Inc
Driver Version: 1.14.3.0
Driver Date: 2011/11/03
Device ID: PCI\VEN_1B21&DEV_1042&SUBSYS_84881043&REV_00\4&11E B9DBD&0&00E4
Can you upgrade to the latest version linked to the ASMedia link on this FAQ?
http://www.displaylink.com/support/ticket.php?id=315
Thanks,
James