BOUNCE sane-devel@mostang.com: Admin request of type /\bcancel\b/i at line 5

From: owner-sane-devel@mostang.com
Date: Wed Jul 18 2001 - 19:32:15 PDT

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    From: Mick Barry <mick@objects.com.au>
    Organization: http://www.objects.com.au
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    To: sane-devel@mostang.com
    Subject: Re: "Epson and SANE/XSANE problem
    References: <3B4B1CE0.E4AA1F2@wanadoo.fr> <20010718215306.A19770@khk.net>
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    Karl,

    Would appreciate if you could have a play.
    Not sure on the interaction involved with an xsane preview, but the
    problems I was experiencing was trying to send a cancel request, while a
    scan was in progress.

    mick

    Karl Heinz Kremer wrote:

    > Hmmm... All I know is that it worked for me yesterday. I did
    > cancel a preview after I realized that I wanted a B/W scan
    > instead of a color scan, so I did a "Cancel Preview". This
    > was with an Expression1680 connected via USB.
    >
    > It is possible that depending on the right or wrong moment of
    > hitting the button the problem either shows up or not...
    >
    > I'll do some experimenting over the weekend.
    >
    > Karl Heinz
    >
    > On Tue, Jul 10, 2001 at 05:18:56PM +0200, Jean-Luc Coulon wrote:
    >
    >> Hi,
    >>
    >> I've remarked this problem when using the preview:
    >>
    >> If I click on "Acquire preview" then, while running, "cancel preview"
    >> I get the following message :
    >> "Backends sends more image data that it defined in parameters"
    >>
    >> Then, if I click again on "Acquire preview", I get the message :
    >> "Failed to start scanner: Invalid argument"
    >>
    >> I cannot close xsane with the [X] button, I've to kill the task from the
    >> window manager. At this point, xsane is eating most of the cpu ; Only a
    >> "kill -s 15" is able to kill the task.
    >>
    >> Then if I start xsane again, it stay in the state "scanning for
    >> devices".
    >>
    >> After a while, I get:
    >> usb_control/bulk_msg: timeout
    >> scanner.c: write_scanner: NAK received.
    >>
    >> To be able to have the system to work again, I've to do a power off/on
    >> of
    >> the scanner. Sometimes, I get:
    >> "scanner.c: close_scanner(0): invalid scn_minor"
    >>
    >> system is :
    >> linux 2.2.20pre (the same occurs with 2.2.19 or 2.4.6-ac).
    >> sane-backends-1.0.5
    >> xsane-0.78
    >> The scanner is an Epson Perfection 1640SU Photo.
    >>
    >> ----------
    >> Regards
    >> Jean-Luc
    >>
    >>
    >> --
    >> Source code, list archive, and docs: http://www.mostang.com/sane/
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