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johanneshau
n00b
Joined: 16 Oct 2011
Posts: 3
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 Posted: Sat Nov 19, 2011 12:53 pm Post subject: sane-find-scanners does not find Canon Lide20 |
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Hello,
I have a Canon Lide20 USB scanner. When I plug it into the computer lsusb does find it:
| Quote: | D620 dll.d # lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 413c:a005 Dell Computer Corp. Internal 2.0 Hub
Bus 001 Device 003: ID 0b97:7761 O2 Micro, Inc. Oz776 1.1 Hub
Bus 001 Device 004: ID 0b97:7762 O2 Micro, Inc. Oz776 SmartCard Reader
Bus 003 Device 004: ID 04a9:220d Canon, Inc. CanoScan N670U/N676U/LiDE 20
D620 dll.d # |
I have emerged xsane, which also installed various sane backends. I understood that I have to use the Plustek backend. UNfortunately when running sane-find-scanner the scanner is not detected:
| Quote: | D620 dll.d # sane-find-scanner
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.
# No USB scanners found. If you expected something different, make sure that
# you have loaded a kernel driver for your USB host controller and have setup
# the USB system correctly. See man sane-usb for details.
# SANE has been built without libusb support. This may be a reason
# for not detecting USB scanners. Read README for more details.
# Not checking for parallel port scanners.
# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.
D620 dll.d # |
All the instructions and hints I could find deal with the situation when sane-find-scanner detects the scanner but scanimage would not. I could not find a solution when sane-find-scanner does not find the scanner.
list-gentoo-packages.sh gives the following output:
| Code: | D620 dll.d # list-gentoo-packages.sh |grep libusb
dev-libs/libusb-0.1.12-r5 -debug -doc -nocxx
dev-libs/libusb-1.0.8 -debug -doc -static-libs
virtual/libusb-0
virtual/libusb-1
D620 dll.d # |
It seems odd to me to have two versions of libusb installed. Could this be the problem? Please help - thanks! |
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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Mon Nov 21, 2011 5:19 pm Post subject: |
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| Quote: | # SANE has been built without libusb support. This may be a reason
# for not detecting USB scanners. Read README for more details. |
So it looks like you need to enable USE=usb for sane. Also make sure that the plustek backend is enabled. |
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