[sane-devel] CanoScan LiDE30 problem
Gerard Klaver
gerard at gkall.hobby.nl
Mon Dec 3 17:20:18 UTC 2007
On Mon, 2007-12-03 at 11:08 +0100, Johannes Ranke wrote:
> Hi,
>
> My Canoscan LiDE30 used to work nicely under Debian unstable for more
> than a year. Since about half a year it makes problems: If I scan from a
> frontend like quiteinsane, I can select the device (I am using libusb),
> and the frontend pretends to scan, but the scanner does nothing, so I
> end up with a black image. The scanner works under Windows. Last week,
> after I tested under Windows, it worked under Linux, too.
>
> $ scanimage -L
> device `v4l:/dev/video0' is a Noname BT878 video (AVerMedia AVerTV D
> virtual device
> device `plustek:libusb:003:003' is a Canon CanoScan N1240U/LiDE30
> flatbed scanner
>
> I discovered that I can scan from the command line as normal user:
>
> $ SANE_DEBUG_PLUSTEK=128 scanimage -d 'plustek:libusb:003:003' \
> > image.pnm \
> 2> canoscanLiDE30.err
>
> I am attaching the output of this. Graphical frontends still don't work,
> even when specifying the device on the command line for xscanimage, or
> selecting it in quiteinsane.
>
> I also noticed the following dmesg output after trying to scan with
> xscanimage:
>
> usb 3-2: usbfs: interface 0 claimed by usbfs while 'xscanimage' sets
> config #1
>
> I don't know which (combination of) software is reponsible for the
> problems, otherwise I would file a bug report in the Debian BTS.
>
> My kernel is:
> $ uname -a
> Linux stiller 2.6.20-1-amd64 #1 SMP Tue Apr 24 21:10:58 UTC 2007
> x86_64 GNU/Linux
>
> Sane version is:
>
> $ scanimage -V
> scanimage (sane-backends) 1.0.18-cvs; backend version 1.0.18
>
> Best regards,
>
> Johannes
Add a # before the v4l line in /etc/sane.d/dll.conf
this will disable the v4l backend and will prevent that your video
device is selected.
>
> --------
> m.vr.gr.
> Gerard Klaver
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