[sane-devel] Canon LiDE 50 not working on recently installed Debian Lenny

[stef]

Le jeudi 29 octobre 2009 02:31:27 m. allan noah, vous avez écrit :
> well, it's not very conclusive- perhaps one of the genesys backend
> authors will comment. In the mean time, you might try to upgrade to
> the most recent sane-backends release, just to see if there are any
> fixes...
>
> allan
>
> On Tue, Oct 27, 2009 at 6:26 AM,  <sjnz at freenet.co.nz> wrote:
> > We got 4 sounds this time. Yes there is a carriage lock on the bottom but
> > it is unlocked. I toggled the switch before testing just to be sure.
> >
> > Once again, I sure appreciate your time and expertise.
> >
> > Cheers,
> >
> > PS the log file is an attachment sent separately.
> >
> > On Tue, October 27, 2009 1:30 am, m. allan noah wrote:
> >> On Mon, Oct 26, 2009 at 4:45 AM,  <sjnz at freenet.co.nz> wrote:
> >>> Well it sounded like the scanner started; it made two short scanning
> >>> sounds, then this message:
> >>>
> >>> h# scanimage > test.pnm scanimage: sane_start: Invalid argument
> >>
> >> well, that is something better- does this thing have a physical carriage
> >> lock on the bottom? might need to unlock it. If not- try getting the
> >> genesys log while scanning:
> >>
> >> SANE_DEBUG_GENESYS=255 scanimage > test.pnm 2>test.log
> >>
> >>
> >> and lets look at test.log
> >>
> >> allan --
> >> "The truth is an offense, but not a sin"
> >>
> >>
> >> --
> >> 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

	Hello,

	I second allan, it would be nice if you could test with at least last stable 
SANE release (1.0.20). But from the log sent, we can see that data reading is 
failing during a calibration scan, while previous scans have succeeded. This 
is rather uncommon. It happened that a few backends had some problems due to 
'USB suspend and resume' at linux kernel level. See:
 - http://lists.alioth.debian.org/pipermail/sane-devel/2007-July/019637.html
 - https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/85488

	So I think it would be interesting if you could try some live cd to test same 
hardware with another kernel. Or test your scanner on another linux machine.
	Since it _may_ be related to USB problems, you could look a kernel messages 
with the 'dmesg' command ? Another source of problem might be the usb port 
used. On my laptop, only one of the 4 ports available works correctly with 
scanners, so depending on which slot I plug scanners, they work or not.

Regards,
	Stef