SANE kan se min USB scanner, men ikke bruge den?

Hejsa

Jeg har eb Canon LiDe30 scanner, den er understøttet af SANE

Når jeg køre sane-find-scanner, får jeg:
[ostehamster@localhost ostehamster]$ sane-find-scanner

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x04a9, product=0x220e) at /dev/usb/scanner0
found USB scanner (vendor=0x04a9, product=0x220e) at libusb:002:004
  # A USB device was detected. This program can't be sure if it's really
  # a scanner. If it is your scanner, it may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Scanners connected to the parallel port or other proprietary ports can't be
  # detected by this program.

  # You may want to run this program as root to find all devices. Once you
  # found the scanner devices, be sure to adjust access permissions as
  # necessary.


Men, når jeg så køre Xsane, får jeg denne besked:
no devices available

Hvordan kan det være?

Jeg har udfyldt plustek.conf, og er rimelig sikker på den er god nok

mvh
Christoffer