I have the exact same problem with the exact same scanner (but I’m running 64-bit Ubuntu w/Linux 3.13.0-45). Sometimes instead of error -110 the logs show the device as being identified correctly, but immediately followed by ”string descriptor 0 read error: -32”. On very rare occasions it just works (no errors when plugged in, identified correctly and scanning works).-110 apparently means not enough power, which is doubly funny because the damn thing has its own power source, and surely a desktop PSU has more power than a laptop…