PS Ubuntu 12.04 видит устройство:
[ 108.964154] usb 1-3: new high-speed USB device number 4 using ehci-pci
[ 109.097746] usb 1-3: New USB device found, idVendor=17e9, idProduct=ff03
[ 109.097765] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 109.097779] usb 1-3: Product: MB168B
[ 109.097791] usb 1-3: Manufacturer: DisplayLink
[ 109.097802] usb 1-3: SerialNumber: D7LMTF******
Однако /dev/fb1 всё равно не появляется.