Jeff Kowalczyk wrote: > My everyday flatbed scanner ((vendor=0x04a9 [Canon], product=0x220d > [CanoScan], chip=LM9832/3) at libusb:002:002) got out of sorts today. > The scan head wasn't returned to the home position (it is now), but > XSane scans now just return solid black data.
I see that it's a known problem, since I have (recently) enabled CONFIG_USB_SUSPEND to try powertop, and this is using the plustek backend.