@PaulHazelden (tenuki57):

I don't see "invalid argument" anywhere in the log. It looks to me that
SANE did not find any scanners. Was your scanner plugged in?

What does the following return:

    scanimage -L

?

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https://bugs.launchpad.net/bugs/844582

Title:
  "Invalid argument" when trying to scan

Status in gscan2pdf package in Ubuntu:
  Invalid
Status in sane-backends package in Ubuntu:
  Opinion

Bug description:
  I'm using a Fujitsu M3091DCd scanner with SANE. From the command line
  it works more or less well with Ubuntu.

  I can't use it with gscan2pdf v0.9.31, but gscan2pdf works with
  another scanner.

  All I get is a meaningless "Invalid argument" when I hit the scan
  button.

  When I start gscan2pdf from the command line I see these lines
  appearing when I hit the scan button:

  Error running process: Died at (eval 39) line 7.

    $device->start;
    $shash{$sane_thread}{status} = $Sane::STATUS+0;
    if ($Sane::STATUS != SANE_STATUS_GOOD) {
     print "$prog_name: sane_start: $Sane::STATUS\n" if $debug;
     $shash{$sane_thread}{go} = 0;
     die; # quickest way out of the eval block
    }

    my $path = $shash{$sane_thread}{data};
    if (not open($fh, ">", $path)) {
     $device->cancel;
     $shash{$sane_thread}{status} = SANE_STATUS_ACCESS_DENIED;
     $shash{$sane_thread}{go} = 0;
     die; # quickest way out of the eval block
    }
    scan_page($device, $fh);
    $shash{$sane_thread}{status} = $Sane::STATUS+0;
    close $fh;
    printf "Scanned page %s.", $path if $debug;
    printf " (scanner status = %d)\n", $Sane::STATUS if $debug;
    $shash{$sane_thread}{status} = $Sane::STATUS+0;
    $shash{$sane_thread}{go} = 0;

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: gscan2pdf 0.9.31-2
  ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  Date: Thu Sep  8 09:44:25 2011
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no username)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gscan2pdf
  UpgradeStatus: Upgraded to natty on 2011-06-01 (98 days ago)

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