[sane-devel] UMAX Astra 2200 USB weirdness

[Oliver Rauch]

I suggest at first you disable the autmatic scanarea selection
in the preferences of xsane.

I will take a look at it.

Oliver

On Tuesday 24 June 2003 09:23, ope wrote:
> I have found another 'behavior' that might shed some
> light on the problems that I am having.  When I do a
> preview the interface auto selects a large square area
> covering most of the scanner bed which I then
> drag/resize to the actual image I am scanning (nothing
> new here).  What I have noticed with absolute
> reliability is this:
>
> 1.  If, after the preview, I can see the entire
> outline of the selection box then the subsequent scan
> will work.
>
> 2.  However, If I can't see the entire selection box
> then the scan will not work.  What I mean by this is
> that often times the bottom line of the selection box
> is 'off' the window such that I can't see any bottom
> line for selecting the image area only.  If I put the
> mouse on the bottom of the frame and drag up I can
> select the scanning area.
>
> Does my explaination make sense?  I can send screen
> shots if it does not.
>
> It is as if xsane thinks that the scanner bed is
> longer than it is.  It oddly explains why the scanner
> lamp has completed the scan and returned but the
> software seems to be waiting for more data and is
> getting bulk_msg: timeout messages.
>
> Does anyone have any ideas?
>
> --- ope <ope557 at yahoo.com> wrote:
> > What I see in messages are a lot of messages saying:
> > kernel: usb_control/bulk_msg: timeout
> > last message repeated 2 times
> > last message repeated 3 times
> > ...
> >
> > and after 10 minutes or so I will see:
> > kernel: scanner.c: read_scanner(0): excessive NAK's
> > received
> >
> >
> > --- Oliver Rauch <oliver.rauch at rauch-domain.de>
> >
> > wrote:
> > > On Tuesday 17 June 2003 09:39, ope wrote:
> > > > I have also noticed another thing that is worth
> > > > mentioning.  At one point when the xsane seemed
> >
> > to
> >
> > > be
> > >
> > > > stuck I tried unplugging the scanner from the
> >
> > USB
> >
> > > > port.  I was expecting xsane to fail and close
> > >
> > > down.
> > >
> > > > What actually did happen was that the complete
> > >
> > > scanned
> > >
> > > > image instantly popped up in the viewer and
> >
> > xsane
> >
> > > was
> > >
> > > > running as if nothing has happened.  Just for
> >
> > fun
> >
> > > I
> > >
> > > > tried it couple more times and had the same
> > >
> > > results
> > >
> > > > each time.  It appears to me that that the scan
> >
> > is
> >
> > > > essentially complete at the point that it is
> > >
> > > freezing.
> > >
> > > This sounds as if there is a problem with the USB
> > > communication.
> > >
> > > Do you get any messages about USB problems
> > > in /var/log/messages ?
> > >
> > > Oliver
> > > _______________________________________________
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> > > http://www.mostang.com/mailman/listinfo/sane-devel
> >
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-- 
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