[sane-devel] Canon PIXMA MX925 - scan process now broken (does not end)

[Rolf Bensch]

Hi Stephen,

Please test an older version from my test ppa: git20170627. I hope that
this version is running.

On a not working system, please test this:
$ SANE_USB_WORKAROUND=1 scanimage -T

I still cannot reproduce this problem on my system, even in a VirtualBox
VM with installed Ubuntu 17.04.

Many thanks for your help.

Cheers,
Rolf


Am 26.08.2017 um 14:57 schrieb Stephen Weston:
> Hi,
> 
> Had a go with the Ubuntu test ppa after a fresh install of Ubuntu 17.04
> in VirtualBox. The terminal output is as below. As you can see the
> scanner was successfully detected and the initial scan worked, but the
> scanner was left in a busy 'scanning...' state and a second attempt at
> scanning did not work.
> 
>     stephen at stephen-VirtualBox:~$ scanimage --version
>     scanimage (sane-backends) 1.0.27git; backend version 1.0.27
> 
>  
> 
>     stephen at stephen-VirtualBox:~$ scanimage -L
>     device `pixma:MX530_192.168.1.68' is a CANON Canon PIXMA MX530
>     Series multi-function peripheral
> 
>  
> 
>     stephen at stephen-VirtualBox:~$ scanimage -T
>     scanimage: scanning image of size 638x877 pixels at 24 bits/pixel
>     scanimage: acquiring RGB frame, 8 bits/sample
>     scanimage: reading one scanline, 1914 bytes...    PASS
>     scanimage: reading one byte...        PASS
>     scanimage: stepped read, 2 bytes...     PASS
>     scanimage: stepped read, 4 bytes...     PASS
>     scanimage: stepped read, 8 bytes...     PASS
>     scanimage: stepped read, 16 bytes...     PASS
>     scanimage: stepped read, 32 bytes...     PASS
>     scanimage: stepped read, 64 bytes...     PASS
>     scanimage: stepped read, 128 bytes...     PASS
>     scanimage: stepped read, 256 bytes...     PASS
>     scanimage: stepped read, 512 bytes...     PASS
>     scanimage: stepped read, 1024 bytes...     PASS
>     scanimage: stepped read, 2048 bytes...     PASS
>     scanimage: stepped read, 2047 bytes...     PASS
>     scanimage: stepped read, 1023 bytes...     PASS
>     scanimage: stepped read, 511 bytes...     PASS
>     scanimage: stepped read, 255 bytes...     PASS
>     scanimage: stepped read, 127 bytes...     PASS
>     scanimage: stepped read, 63 bytes...     PASS
>     scanimage: stepped read, 31 bytes...     PASS
>     scanimage: stepped read, 15 bytes...     PASS
>     scanimage: stepped read, 7 bytes...     PASS
>     scanimage: stepped read, 3 bytes...     PASS
> 
>  
> 
>     stephen at stephen-VirtualBox:~$ scanimage -T
>     scanimage: scanning image of size 638x877 pixels at 24 bits/pixel
>     scanimage: acquiring RGB frame, 8 bits/sample
>     scanimage: reading one scanline, 1914 bytes...    FAIL Error: Error
>     during device I/O
> 
> 
> 
> Thanks. I appreciate your work in getting the scanner sorted.
> Kind regards,
> Stephen
> 
> On 26 August 2017 at 10:50, Rolf Bensch <rolf at bensch-online.de
> <mailto:rolf at bensch-online.de>> wrote:
> 
>     Hi,
> 
>     I just uploaded a version without the sanei threading changes to my
>     Ubuntu test ppa
>     (https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-test
>     <https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-test>). Please
>     test this version and report your results.
> 
>     Many thanks for your help.
> 
>     Cheers,
>     Rolf
> 
>     Am 12.08.2017 um 05:32 schrieb Olaf Meeuwissen:
>     > Hi Kay,
>     >
>     > Kay Drangmeister writes:
>     >
>     >> Hi,
>     >>
>     >> I am using the sane libs (Ubuntu 16.04) with a Canon Pixma MX925
>     >> successfully for years now. Since some time (days, maybe weeks), the
>     >> scan process does not terminate well.
>     >
>     > There were two recent threads about similar issues that may be of
>     > interest
>     >
>     > 
>     https://lists.alioth.debian.org/pipermail/sane-devel/2017-July/035481.html
>     <https://lists.alioth.debian.org/pipermail/sane-devel/2017-July/035481.html>
>     > 
>     https://lists.alioth.debian.org/pipermail/sane-devel/2017-July/035520.html
>     <https://lists.alioth.debian.org/pipermail/sane-devel/2017-July/035520.html>
>     >
>     > Note, both threads continue on
>     >
>     > 
>     https://lists.alioth.debian.org/pipermail/sane-devel/2017-August/thread.html
>     <https://lists.alioth.debian.org/pipermail/sane-devel/2017-August/thread.html>
>     >
>     > You could try reverting to 1.0.25+git20150528
>     >
>     > @Rolf> I hope these recent problem don't have anything to do with my
>     >        sanei threading changes.
>     >
>     >> [...]
>     >
>     > Hope this helps,
>     > --
>     > Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
>     >  GnuPG key: F84A2DD9/B3C0 2F47 EA19 64F4 9F13  F43E B8A4 A88A F84A 2DD9
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>     >  Join the Free Software Foundation              https://my.fsf.org/join
>     >
> 
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