[sane-devel] Canon PIXMA 490 Seg Fault

[Ralph Little]

Hi,
If you are able, you can try to build the pixma backend from branch 
264-canon-pixma-mx492-adf-issues at the git repo.
You only really need the libsane-pixma* files to support your scanner.

If you are not sure how to do this, then let me know and I can help you out.

I just tried that branch code on my MX492 and it works fine. However 
regular 1.1.1 is a bust on the ADF.
IIRC it was an alignment requirement that these particular machines are 
more fussy about.

Cheers,
Ralph

On 2023-04-23 14:22, Atom Mac wrote:
> Thanks for your time, Ralph!
>
> The output of `scanimage -V` is:
> scanimage (sane-backends) 1.1.1; backend version 1.1.1
>
> :wave:
>
> On Sun, Apr 23, 2023 at 12:05 PM Ralph Little <skelband at gmail.com> wrote:
>
>     Hi,
>
>     On 2023-04-23 07:34, Atom Mac wrote:
>     > Hello everyone!
>     >
>     > I've been attempting to get the "Automatic Document Feeder" to
>     work with
>     > my Canon PIXMA 490 but after a 1-2 minute delay, `scanimage`
>     outputs a
>     > "Segmentation Fault" error (which no details).  Below are the full
>     > inputs and outputs involved.  Note that scanning works fine with the
>     > `Flatbed` source; just not the `Automatic Document Feeder` source.
>     >
>     > ## Input
>     >
>     > scanimage \
>     >          --device=pixma:04A91787_77BF9D \
>     >          --source="Automatic Document Feeder" \
>     >          --batch=out%d.png \
>     >          --format=png \
>     >          --mode=Gray \
>     >          -v
>     >
>     > ## Output
>     >
>     > Scanning infinity pages, incrementing by 1, numbering from 1
>     > Scanning page 1
>     > Segmentation fault
>     >
>     > ## System Info
>     > Raspberry Pi 3
>     > Alpine Linux 3.17.3
>     >
>     > Any help would be greatly appreciated!
>     >
>     > -Atom
>     >
>
>     I know that there are issues with this family of machines. I have
>     done
>     some work with a MX492 (that is not yet merged) and it has very
>     problematic ADF support.
>     I will drag out mine and try it with what you have above and see if I
>     get the same.
>
>     In the meantime, could you let us know the versions of your SANE
>     components?
>
>     scanimage -V
>
>     Cheers,
>     Ralph
>
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