[sane-devel] blank page scanned with CanoScan LiDE25
Y P
yellow.penguin at edpnet.be
Tue Oct 21 12:32:45 UTC 2008
Hi,
On Tue, Oct 21, 2008 at 08:19:14AM -0400, m. allan noah wrote:
> the permissions of your program are irrelevant. it is the permissions of the USB device file that matter.
>Usually, these devices are owned by a group like scanner, and adding yourself to that group fixes the problem.
I added myself to the group scanner but it doesn't seem to resolve the
problem;
here are also the output of the command groups under my Ubuntu Hardy; tell
me what I can do anymore?
yp at ubu:~$ groups
yp adm dialout cdrom floppy audio dip video plugdev scanner fuse lpadmin admin
Y P
--- Our previous session ---
> On Tue, Oct 21, 2008 at 7:50 AM, Y P <yellow.penguin at edpnet.be> wrote:
> > Hi,
> >
> > On Mon, Oct 20, 2008 at 08:26:39PM -0400, m. allan noah wrote:
> >> perhaps try to sudo your scanimage command.
> >
> > Well that works now.
> > But:
> >
> >>if that helps, then you
> >> need more permissions, perhaps adding yourself to group scanner will
> >> be enough.
> >
> > It seems not: when I launch my homemade scanning script the scanimage
> > message says:
> > scanimage: no SANE devices found
> >
> > Note that I tryed th next:
> > sudo chown yp:scanner /usr/local/bin/scan2*
> > (to sete my scripts in the scanner group,
> > idem I did: chown yp:scanner ~/lin_scans
> > since taht's my destination dir.
> >
> > None of any changed something:
> > ONLY sudo scan2* works.
> >
> > What am I missing ? (its an USB scanner, so I don't need any /dev/scanner or
> > so ?
> >
> > Y P
> >
> > --- My orig. session ---
> >> On Mon, Oct 20, 2008 at 2:13 PM, Y P <yellow.penguin at edpnet.be> wrote:
> >> > Hello SANE-people,
> >> >
> >> > can someone help advising me ?
> >> >
> >> > - my scanner is a new Canon CanoScan LiDE25
> >> > - my distro is Ubuntu Hardy
> >> > - I use the sane-utils since I'm blind and 99.9% commandline user
> >> > - the device seem to scan but the scanned page is blank;
> >> > these are more details:
> >> >
> >> > # What's already installed or have been added:
> >> > aldo at ubu:~$ dpkg -l |grep sane
> >> > ii libsane 1.0.19-1ubuntu3 API library for scanners
> >> >
> >> > ii sane-utils 1.0.19-1ubuntu3 API library for scanners -- utilities
> >> >
> >> > (added by me)
> >> > ii xsane 0.995-1ubuntu1 featureful graphical frontend for SANE (Scan
> >> >
> >> > ii xsane-common 0.995-1ubuntu1 featureful graphical frontend for SANE (Scan
> >> >
> >> >
> >> > # Test to see which groups the major user is being member of:
> >> > aldo at ubu:~$ groups
> >> > aldo adm dialout cdrom floppy audio dip video plugdev fuse lpadmin admin
> >> >
> >> > (I don't know if I must addgroup scanner and adduser aldo scanner ?
> >> >
> >> > aldo at ubu:~$ lsusb
> >> > Bus 005 Device 001: ID 0000:0000
> >> >
> >> > Bus 004 Device 001: ID 0000:0000
> >> >
> >> > Bus 003 Device 002: ID 046d:c310 Logitech, Inc.
> >> >
> >> > Bus 003 Device 001: ID 0000:0000
> >> >
> >> > Bus 002 Device 002: ID 0a5c:2101 Broadcom Corp.
> >> >
> >> > Bus 002 Device 001: ID 0000:0000
> >> >
> >> > Bus 001 Device 005: ID 04a9:2220 Canon, Inc.
> >> >
> >> > Bus 001 Device 003: ID 05e3:0606 Genesys Logic, Inc. D-Link DUB-H4 USB 2.0 Hub
> >> >
> >> > Bus 001 Device 001: ID 0000:0000
> >> >
> >> > (the device is detected)
> >> >
> >> > aldo at ubu:~$ 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.
> >> >
> >> >
> >> >
> >> > found USB scanner (vendor=0x04a9, product=0x2220, chip=LM983x?) at libusb:001:005
> >> >
> >> > # Your USB scanner was (probably) detected. It may or may not be supported by
> >> >
> >> > # SANE. Try scanimage -L and read the backend's manpage.
> >> >
> >> >
> >> >
> >> > # Not checking for parallel port scanners.
> >> >
> >> >
> >> >
> >> > # Most 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.
> >> >
> >> > (its type is USB, so that's OK)
> >> >
> >> > # now as user:
> >> > aldo at ubu:~$ scanimage -L
> >> >
> >> >
> >> > No scanners were identified. If you were expecting something different,
> >> >
> >> > check that the scanner is plugged in, turned on and detected by the
> >> >
> >> > sane-find-scanner tool (if appropriate). Please read the documentation
> >> >
> >> > which came with this software (README, FAQ, manpages).
> >> >
> >> >
> >> > # As sudo:
> >> > aldo at ubu:~$ sudo scanimage -L
> >> > [sudo] password for aldo:
> >> > device `plustek:libusb:001:005' is a Canon CanoScan LiDE25 flatbed scanner
> >> >
> >> >
> >> > Now if I do:
> >> > scanimage -v -p -l 0 -t 0 -x 215 -y 297 --mode Gray --format tiff --resolution 600 >/tmp/tmp.tiff
> >> > convert /tmp/tmp.tiff oout.jpg
> >> >
> >> > it seems to scan, but friends are telling me the scanned doc is empty.
> >> >
> >> > I don't see what is wrong?
> >> >
> >> > Grtnx,
> >> >
> >> > Aldo.
> >> >
> >> >
> >> > --
> >> > sane-devel mailing list: sane-devel at lists.alioth.debian.org
> >> > http://lists.alioth.debian.org/mailman/listinfo/sane-devel
> >> > Unsubscribe: Send mail with subject "unsubscribe your_password"
> >> > to sane-devel-request at lists.alioth.debian.org
> >> >
> >>
> >>
> >>
> >> --
> >> "The truth is an offense, but not a sin"
> >
> > --
> > https://bugs.launchpad.net/ubuntu/+bug/1 :
> > Micro$oft has a majority market share in the new desktop PC marketplace.
> > This is a bug, which Ubuntu is designed to fix !
> > http://www.ubuntu.com/
> >
>
>
>
> --
> "The truth is an offense, but not a sin"
--
https://bugs.launchpad.net/ubuntu/+bug/1 :
Micro$oft has a majority market share in the new desktop PC marketplace.
This is a bug, which Ubuntu is designed to fix !
http://www.ubuntu.com/
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