[sane-devel] Canon DR-2580C only low resolutions

[m. allan noah]

ah- and between those two versions, there were very few changes. In
particular, there was a change to the 2580 code to deal with its
padding of the back side of the image. Are you able to recompile
sane-backends from source? If so, perhaps we can try a test.

allan

On Fri, May 24, 2013 at 12:15 PM, Carl Davis <carl at carldavis.com> wrote:
> Hopefully this is what you are seeking.
>
> 1.0.22 works
> 1.0.23 fails
>
>
> On Fri, May 24, 2013 at 10:50 AM, m. allan noah <kitno455 at gmail.com> wrote:
>>
>> Yes- i think there is some problem with the calibration code on these
>> machines, at higher resolutions the calibration is done differently
>> than in lower resolutions. Perhaps the old version of the code did
>> different calibration. How about telling which version of
>> sane-backends is in use on your two systems?
>>
>> allan
>>
>> On Fri, May 24, 2013 at 11:05 AM, Carl Davis <carl at carldavis.com> wrote:
>> > Hello,
>> >
>> > I have a Canon DR-2580C. If I scan at anything above a –resolution of
>> > 240 my
>> > attempted scan fails with:
>> >
>> > "scanimage: open of device canon_dr:libusb:001:012 failed: Invalid
>> > argument"
>> >
>> > This problem does not exist on 12.04(1.0.22-7ubuntu1) but does on 12.10
>> > and
>> > 13.04 (1.0.23-0ubuntu1). I have run:
>> >
>> > "SANE_DEBUG_CANON_DR=30 scanimage --resolution=300 > 2580-1.pnm
>> > 2>2580-13.04.log"
>> >
>> > and attached the log file to this email. I have also run the same
>> > command on
>> > 12.04 (which succeeds) but it is 8MB bzipped so I won't attach it to
>> > list
>> > mail unless requested.
>> >
>> >
>> > Thanks,
>> >
>> > Carl
>> >
>> >
>> >
>> > --
>> > sane-devel mailing list: sane-devel at lists.alioth.debian.org
>> > http://lists.alioth.debian.org/cgi-bin/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"
>
>



-- 
"The truth is an offense, but not a sin"