Update: I tried a bunch of other stuff and eventually gave up. I started again from scratch, this time on Windows. I have a printer driver on the installation CD and I install it and it works fine (meaning, I can draw a path in Inkscape and click File > Print, then it does indeed cut). However I'd s...

I have a Silhouette portrait plugged in to a USB port on Ubuntu 13.10. By looking at the ports using "lsusb" I see that it is at port /dev/bus/usb/001/005 (it doesn't look like the usual /dev/ttyUSB0 or whatever, because I happen to be running Ubuntu on a chromebox.. anyway long story, tha...