Bug#419199: kooka seems to be scanning, but isn't

[Michael Burschik <Michael.Burschik@gmx.de>]

Package: kooka
Version: 4:3.5.5-3
Severity: grave
Justification: renders package unusable

Kooka seems to scan, but doesn't actually. A progress bar is displayed
and a completely black image is "scanned", but the scanner does not
actually do anything. Xsane suffers from the same problem (I am
submitting a separate bug report), but scanimage works perfectly.

$ scanimage -L
device `plustek:libusb:003:002' is a Canon N670U/N676U/LiDE20 USB flatbed scanner

P.S.: Reportbug should warn you that it won't work if you save a copy of the file
      you are editing.

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.20
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)

Versions of packages kooka depends on:
ii  kdelibs4c2a            4:3.5.5a.dfsg.1-8 core libraries and binaries for al
ii  libc6                  2.3.6.ds1-13      GNU C Library: Shared libraries
ii  libgcc1                1:4.1.1-21        GCC support library
ii  libjpeg62              6b-13             The Independent JPEG Group's JPEG 
ii  libkscan1              4:3.5.5-3         scanner library for KDE
ii  libqt3-mt              3:3.3.7-4         Qt GUI Library (Threaded runtime v
ii  libstdc++6             4.1.1-21          The GNU Standard C++ Library v3
ii  libtiff4               3.8.2-7           Tag Image File Format (TIFF) libra
ii  zlib1g                 1:1.2.3-13        compression library - runtime

Versions of packages kooka recommends:
pn  ocrad | gocr                  <none>     (no description available)

-- no debconf information