[sane-devel] Epson backend reporting impossible values, was, [gscan2pdf-help]

Sun Feb 28 00:36:25 UTC 2010

The epson backend is deprecated and unsupported. Please use epson2
instead. You may have to disable epson and enable epson2 in
/etc/sane.d/dll.conf.

allan

On Sat, Feb 27, 2010 at 4:24 PM, Gwern Branwen <gwern0 at gmail.com> wrote:
> Summary: sane reports that my scanner, which was working fine before I did
> some Ubuntu upgrades, now possesses 0 scanning capabilities. This is a bug
> on someone's part, and Ratcliffe suggested I try here. (I got no replies in
> the IRC channel.)
>
> Forwarded conversation
> Subject: Re: [gscan2pdf-help] gscan2pdf-help post from gwern0 at gmail.com
> requires approval
> ------------------------
>
> From: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Date: Wed, Feb 17, 2010 at 3:16 AM
> To: gscan2pdf-help at lists.sourceforge.net
>
>
> On Wed, Feb 17, 2010 at 01:37:07AM +0000,
> gscan2pdf-help-owner at lists.sourceforge.net wrote:
>> Out of the box, jaunty gscan2pdf failed to scan with an array of error
>> messages. I upgraded it and most of its deps to Karmic in the hopes
>> things had been fixed, but no dice. So then I did a git clone and
>> began working with *that*. After a great deal of fiddling with CPAN
>> and debuild for things the configure script did not seem to pick up or
>> flag as missing, I ran bin/gscan2pdf with great hopes - and it failed
>> on scanning with much the same error.
>
> It looks as though the SANE backend process is not finishing
> cleanly. Can you scan with scanimage?
>
> Regards
>
> Jeff
>
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> ------------------------------------------------------------------------------
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> _______________________________________________
> gscan2pdf-help mailing list
> gscan2pdf-help at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gscan2pdf-help
>
>
> ----------
> From: Gwern Branwen <gwern0 at gmail.com>
> Date: Wed, Feb 17, 2010 at 9:57 AM
> To: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Cc: gscan2pdf-help at lists.sourceforge.net
>
>
> No; in fact, all of the 'frontend' (as the preferences call them) seem
> to be broken. Attached is screenshot & --debug for 'scanimage'.
>
> --
> gwern
>
> ----------
> From: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Date: Wed, Feb 17, 2010 at 1:57 PM
> To: gscan2pdf-help at lists.sourceforge.net
>
>
> The reason that hasn't worked is that scanimage is reporting no
> resolutions available:
>
>    --resolution dpi [0]
>        Sets the resolution of the scanned image.
>
> The available scan area is also 0:
>
>    -l 0..0mm [0]
>        Top-left x position of scan area.
>    -t 0..0mm [0]
>        Top-left y position of scan area.
>    -x 0..0mm [0]
>        Width of scan-area.
>    -y 0..0mm [0]
>        Height of scan-area.
>
> What happens if you try on the command line:
>
> scanimage --device-name='epson:libusb:001:012' --mode='Binary'
> --source='Flatbed' > image.pnm
>
> ?
>
> The epson backend doesn't seem to be in a good state.
>
> Regards
>
> Jeff
>
> ------------------------------------------------------------------------------
> SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
> Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
> http://p.sf.net/sfu/solaris-dev2dev
>
> ----------
> From: Gwern Branwen <gwern0 at gmail.com>
> Date: Fri, Feb 19, 2010 at 11:44 AM
> To: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Cc: gscan2pdf-help at lists.sourceforge.net
>
>
> On Wed, Feb 17, 2010 at 1:57 PM, Jeffrey Ratcliffe
>> --source='Flatbed' > image.pnm
>
> [11:41 AM] 248Mb$ scanimage --device-name='epson:libusb:001:012'
> scanimage: open of device epson:libusb:001:012 failed: Invalid argument
>
> [11:42 AM] 248Mb$ scanimage -L
> device `epson:libusb:001:014' is a Epson  flatbed scanner
> [11:43 AM] 248Mb$ scanimage --device-name='epson:libusb:001:014'
> scanimage: sane_start: Invalid argument
> [11:43 AM] 248Mb$ scanimage -L
> device `epson:libusb:001:015' is a Epson  flatbed scanner
> [11:43 AM] 248Mb$ rm image.pnm; scanimage
> --device-name='epson:libusb:001:015' --mode='Binary'
> --source='Flatbed' > image.pnm
> scanimage: attempted to set inactive option source
> [11:43 AM] 248Mb$ rm image.pnm; scanimage
> --device-name='epson:libusb:001:015' --mode='Binary' > image.pnm
> scanimage: sane_start: Invalid argument
> [11:43 AM] 248Mb$ scanimage -L
> device `epson:libusb:001:016' is a Epson  flatbed scanner
> [11:43 AM] 248Mb$ rm image.pnm; scanimage
> --device-name='epson:libusb:001:016' > image.pnm
> scanimage: sane_start: Invalid argument
> [11:44 AM] 248Mb$
>
> (I tried turning off & on the scanner before each scanimage -L, hence
> the incrementing.)
>
> --
> gwern
>
> ----------
> From: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Date: Sat, Feb 20, 2010 at 9:39 AM
> To: Gwern Branwen <gwern0 at gmail.com>
> Cc: gscan2pdf-help at lists.sourceforge.net
>
>
> Try scanimage --device-name='epson:libusb:001:012' --help
>
> just to check the option names are correct, but assuming they are,
> this is a problem for the sane-devel list.
>
> Regards
>
> Jeff
>
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>
> ----------
> From: Gwern Branwen <gwern0 at gmail.com>
> Date: Mon, Feb 22, 2010 at 11:14 AM
> To: Jeffrey Ratcliffe <jeffrey.ratcliffe at gmail.com>
> Cc: gscan2pdf-help at lists.sourceforge.net
>
>
> On Sat, Feb 20, 2010 at 9:39 AM, Jeffrey Ratcliffe
> [11:11 AM] 1355Mb$ scanimage --device-name='epson:libusb:001:003'
> --help &> output
>
> I'm not entirely sure what you're looking for, so I've attached the
> entire output:
>
> [11:11 AM] 1355Mb$ scanimage --device-name='epson:libusb:
> 001:003'
> --help &> output
>
> I notice that your previous suggested commands all had the
> '--option=value' syntax, but the output says things like '--mode
> Binary|Gray|Color [Binary]'.
>
> --
> gwern
>
> On Mon, Feb 22, 2010 at 11:50 AM, Jeffrey Ratcliffe
> <jeffrey.ratcliffe at gmail.com> wrote:
>> On Mon, Feb 22, 2010 at 11:14:17AM -0500, Gwern Branwen wrote:
>>> I'm not entirely sure what you're looking for, so I've attached the
>>> entire output:
>>>
>>> [11:11 AM] 1355Mb$ scanimage --device-name='epson:libusb:001:003'
>>> --help &> output
>>
>> Yes. There is a problem with the backend - it is reporting 0
>> resolution and page size! I would start back posting this output on
>> sane-devel and see if you get any joy there.
>>
>>> I notice that your previous suggested commands all had the
>>> '--option=value' syntax, but the output says things like '--mode
>>> Binary|Gray|Color [Binary]'.
>>
>> That is just showing you the options - i.e. the --mode option could be
>> binary, gray or color, but defaults to binary if you don't specify it.
>>
>> Regards
>>
>> Jeff
>
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-- 
"The truth is an offense, but not a sin"