# snapscan 1212U (not _2), Floating Point Exception

From: Florian Friesdorf (42ff@gmx.net)
Date: Thu Apr 26 2001 - 11:03:14 PDT

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  I already sent this message 2 hours ago, but it didn't appear on the
  least by now. Perhaps, because of the larger attachment.
  So this time, I put the logfiles on http:

  http://www.eikon.tum.de/~ffr/lsusb1.log 1. mouse, 2. scanner
  http://www.eikon.tum.de/~ffr/lsusb2.log 1. scanner, 2. mouse
  http://www.eikon.tum.de/~ffr/xscanimage.log

      ----
      I have an AGFA Snapscan 1212U. The version that doesn't need a firmware
      update (AFAIK).
      Using
      sane-backends-1.0.4.tar.gz
      sane-frontends-1.0.4.tar.gz
      snapscan-20010411.tar.gz
      xsane-0.75.tar.gz
      linux-2.4.3 (scanner.o, usb-uhci.o/uhci.o)
      I finally managed to see my scanner at least. (see attached logfile)
      Now the problem is, when trying to aquire a preview image, both
      xscanimage and xsane crash with a floating point exception.
      According to the debug output and gdb, the problem seems to be that
      p->bytes_per_line is 0 and therefore an exception is raised. (See at the
      end of attached logfile)
      After this the scanner behaves very strange, from not answering anything
      to sending strange identification strings (@   d %!, or something like
      this) and needs to be turned off/on.
      I already tried to switch my usb ports. My logitech mouse is running fine
      on both.
      What is also strange: lsusb says "cannot get string descriptor 1,
      Connection timed out (110)". The message is always somewhere in the output
      of the first usb device. (see lsusb1.log, lsusb2.log)
      Any help would be very much appreciated.
      regards
      florian
      --
           Florian Friesdorf <42ff@gmx.net>
      OpenPGP key available on public key servers
      ------> Save the future of Open Source <------
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  - application/pgp-signature attachment: stored

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