SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Put a DIN-A5 Document in the ADF-Feeder 2. a.) activate skanlite and put ADF Duplex (same without Duplex) - 2.b.) activate Skanlite and put ADF - Scan seems sucessfull but on the end same message twiice and impossible to save the document! - However the docment appears scanned in the preview! 3. Put DIN-A 5 Landscape (Querformat) (but all other format fails also for the backside) OBSERVED RESULT Document is pulled in - the preview Window pops up with the first page but scanning stops with the message - "Document-feeder out of document" - Apparently the document is scanned from the other side also... Scanner employed: Canon Pixma MX 720 Series. - There are also some binaries from Canon called "Scangear" but they never work with the actual Linux! EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux just installed and actualized - 26.10.2022 (available in About System) KDE Plasma Version: dpkg -l |grep plasma ii kdeplasma-addons-data 4:5.24.6-0ubuntu0.1 all locale files for kdeplasma-addons ii libkf5plasma5:amd64 5.92.0-0ubuntu1 amd64 Plasma Runtime components ii libkf5plasmaquick5:amd64 5.92.0-0ubuntu1 amd64 Plasma Runtime components ii libplasma-geolocation-interface5 4:5.24.6-0ubuntu0.1 amd64 Plasma Workspace for KF5 library ii libreoffice-plasma 1:7.4.2~rc3-0ubuntu0.20.04.1~lo1 amd64 office productivity suite -- some Plasma integration ii plasma-browser-integration 5.24.4-0ubuntu1 amd64 Chromium, Google Chrome, Firefox integration for Plasma ii plasma-calendar-addons:amd64 4:5.24.6-0ubuntu0.1 amd64 additional calendar plugins for Plasma 5 ii plasma-dataengines-addons:amd64 4:5.24.6-0ubuntu0.1 amd64 additional data engines for Plasma ii plasma-desktop 4:5.24.6-0ubuntu0.1 amd64 Tools and widgets for the desktop ii plasma-desktop-data 4:5.24.6-0ubuntu0.1 all Tools and widgets for the desktop data files ii plasma-discover 5.24.6-0ubuntu0.1 amd64 Discover software management suite ii plasma-discover-backend-flatpak 5.24.6-0ubuntu0.1 amd64 Discover software management suite - Flatpak backend ii plasma-discover-backend-fwupd 5.24.6-0ubuntu0.1 amd64 Discover software management suite - fwupd backend ii plasma-discover-backend-snap 5.24.6-0ubuntu0.1 amd64 Discover software management suite - Snap backend ii plasma-discover-common 5.24.6-0ubuntu0.1 all Discover software manager suite (common data files) ii plasma-discover-snap-backend 5.18.7-0ubuntu0.1 all Discover Flatpak backend - transitional package ii plasma-disks 5.24.4-0ubuntu1 amd64 Monitor S.M.A.R.T. capable devices for imminent failure in Plasma ii plasma-firewall 5.24.4-0ubuntu1 amd64 Plasma configuration module for firewalls ii plasma-framework 5.92.0-0ubuntu1 amd64 Plasma Runtime components ii plasma-integration 5.24.4-0ubuntu1 amd64 Qt Platform Theme integration plugins for KDE Plasma ii plasma-nm 4:5.24.5-0ubuntu0.1 amd64 Plasma network connections management ii plasma-pa 4:5.24.5-0ubuntu0.1 amd64 Plasma 5 Volume controller ii plasma-runners-addons:amd64 4:5.24.6-0ubuntu0.1 amd64 additional runners for Plasma 5 and Krunner ii plasma-systemmonitor 5.24.4-0ubuntu1 amd64 System monitor for the Plasma desktop ii plasma-thunderbolt 5.24.4-0ubuntu1 amd64 Plasma addons for managing Thunderbolt devices ii plasma-vault 5.24.4-0ubuntu1 amd64 Plasma applet and services for creating encrypted vaults ii plasma-wallpapers-addons:amd64 4:5.24.6-0ubuntu0.1 amd64 additional wallpaper plugins for Plasma 5 ii plasma-widgets-addons 4:5.24.6-0ubuntu0.1 amd64 additional widgets for Plasma 5 ii plasma-workspace 4:5.24.6-0ubuntu0.1 amd64 Plasma Workspace for KF5 ii plasma-workspace-data 4:5.24.6-0ubuntu0.1 all Plasma Workspace for KF5 - data files ii plasma-workspace-wallpapers 4:5.24.4-0ubuntu1 all Wallpapers for Plasma 5 KDE Frameworks Version: Qt Version: decoration for the Oxygen desktop theme ii layer-shell-qt 5.24.6-0ubuntu0.1 amd64 use the Wayland wl-layer-shell protocol. ii libaccounts-qt5-1:amd64 1.16-2 amd64 Accounts database access Qt version - Qt5 shared library ii libappstreamqt2:amd64 0.15.2-2 amd64 Qt5 library to access AppStream services ii libdbusmenu-qt5-2:amd64 0.9.3+16.04.20160218-2build1 amd64 Qt implementation of the DBusMenu protocol ii libgsettings-qt1:amd64 0.2-4 amd64 library to access GSettings from Qt (shared libraries) ii libkf5bluezqt-data 5.92.0-0ubuntu1 all data files for bluez-qt ii libkf5bluezqt6:amd64 5.92.0-0ubuntu1 amd64 Qt wrapper for bluez ii libkf5dbusaddons-bin 5.92.0-0ubuntu1 amd64 class library for qtdbus ii libkf5dbusaddons-data 5.92.0-0ubuntu1 all class library for qtdbus ii libkf5dbusaddons5:amd64 5.92.0-0ubuntu1 amd64 class library for qtdbus ii libkf5modemmanagerqt6:amd64 5.92.0-0ubuntu1 amd64 Qt wrapper library for ModemManager ii libkf5networkmanagerqt6 5.92.0-0ubuntu1 amd64 Qt wrapper for NetworkManager - library ii libkf5pulseaudioqt2:amd64 1.2-2build1 amd64 Pulseaudio bindings library for Qt ii libkf5pulseaudioqt3:amd64 1.3-2 amd64 Pulseaudio bindings library for Qt ii liblayershellqtinterface5 5.24.6-0ubuntu0.1 amd64 use the Wayland wl-layer-shell protocol. ii libpackagekitqt5-1:amd64 1.0.2-1 amd64 Library for accessing PackageKit using Qt5 ii libphonon4qt5-4:amd64 4:4.11.1-4 amd64 multimedia framework from KDE using Qt 5 - core library ii libphonon4qt5-data 4:4.11.1-4 all multimedia framework from KDE using Qt 5 - core library data ii libpolkit-qt5-1-1:amd64 0.114.0-2 amd64 PolicyKit-qt5-1 library ii libpoppler-qt5-1:amd64 22.02.0-2ubuntu0.1 amd64 PDF rendering library (Qt 5 based shared library) ii libqaccessibilityclient-qt5-0:amd64 0.4.1-1build1 amd64 helper to make writing accessibility tools easier ii libqca-qt5-2:amd64 2.3.4-1build1 amd64 libraries for the Qt Cryptographic Architecture ii libqca-qt5-2-plugins:amd64 2.3.4-1build1 amd64 QCA plugins for libqca2 ii libqt5concurrent5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 concurrent module ii libqt5core5a:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 core module ii libqt5dbus5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 D-Bus module ii libqt5designer5:amd64 5.15.3-1 amd64 Qt 5 designer module ii libqt5gui5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 GUI module ii libqt5help5:amd64 5.15.3-1 amd64 Qt 5 help module ii libqt5hunspellinputmethod5:amd64 5.15.3+dfsg-1 amd64 Qt virtual keyboard - helper library for Hunspell input method ii libqt5multimedia5:amd64 5.15.3-1 amd64 Qt 5 Multimedia module ii libqt5multimedia5-plugins:amd64 5.15.3-1 amd64 Qt 5 Multimedia module plugins ii libqt5multimediagsttools5:amd64 5.15.3-1 amd64 GStreamer tools for Qt 5 Multimedia module ii libqt5multimediaquick5:amd64 5.15.3-1 amd64 Qt 5 Multimedia Quick module ii libqt5multimediawidgets5:amd64 5.15.3-1 amd64 Qt 5 Multimedia Widgets module ii libqt5network5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 network module ii libqt5opengl5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 OpenGL module ii libqt5positioning5:amd64 5.15.3+dfsg-3 amd64 Qt Positioning module ii libqt5printsupport5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 print support module ii libqt5qml5:amd64 5.15.3+dfsg-1 amd64 Qt 5 QML module ii libqt5qmlmodels5:amd64 5.15.3+dfsg-1 amd64 Qt 5 QML Models library ii libqt5qmlworkerscript5:amd64 5.15.3+dfsg-1 amd64 Qt 5 QML Worker Script library ii libqt5quick5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick library ii libqt5quickcontrols2-5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick Controls 2 library ii libqt5quickparticles5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick particles module ii libqt5quickshapes5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick Shapes module ii libqt5quicktemplates2-5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick Templates 2 library ii libqt5quickwidgets5:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick Widgets library ii libqt5script5:amd64 5.15.3+dfsg-1 amd64 Qt 5 script module ii libqt5sensors5:amd64 5.15.3-1 amd64 Qt Sensors module ii libqt5sql5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 SQL module ii libqt5sql5-sqlite:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 SQLite 3 database driver ii libqt5svg5:amd64 5.15.3-1 amd64 Qt 5 SVG module ii libqt5test5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 test module ii libqt5texttospeech5:amd64 5.15.3-1 amd64 Speech library for Qt - libraries ii libqt5virtualkeyboard5:amd64 5.15.3+dfsg-1 amd64 Qt virtual keyboard - public shared library ii libqt5waylandclient5:amd64 5.15.3-1 amd64 QtWayland client library ii libqt5waylandcompositor5:amd64 5.15.3-1 amd64 QtWayland compositor library ii libqt5webchannel5:amd64 5.15.3-1 amd64 Web communication library for Qt ii libqt5webengine-data 5.15.9+dfsg-1 all Web content engine library for Qt - Data ii libqt5webengine5:amd64 5.15.9+dfsg-1 amd64 Web content engine library for Qt ii libqt5webenginecore5:amd64 5.15.9+dfsg-1 amd64 Web content engine library for Qt - Core ii libqt5webenginewidgets5:amd64 5.15.9+dfsg-1 amd64 Web content engine library for Qt - Widget ii libqt5webkit5:amd64 5.212.0~alpha4-15ubuntu1 amd64 Web content engine library for Qt ii libqt5websockets5:amd64 5.15.3-1 amd64 Qt 5 Web Sockets module ii libqt5widgets5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 widgets module ii libqt5x11extras5:amd64 5.15.3-1 amd64 Qt 5 X11 extras ii libqt5xml5:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 XML module ii libqt5xmlpatterns5:amd64 5.15.3-1 amd64 Qt 5 XML patterns module ii libreoffice-qt5 1:7.4.2~rc3-0ubuntu0.20.04.1~lo1 amd64 office productivity suite -- Qt 5 integration ii libsignon-qt5-1:amd64 8.59+17.10.20170606-0ubuntu3 amd64 Single Sign On framework ii libsnapd-qt1:amd64 1.60-0ubuntu1 amd64 Qt snapd library ii pavucontrol-qt 0.17.0-0ubuntu2 amd64 Qt port of volume control pavucontrol ii pavucontrol-qt-l10n 0.17.0-0ubuntu2 all Language package for pavucontrol-qt ii phonon4qt5:amd64 4:4.11.1-4 amd64 multimedia framework from KDE using Qt 5 - metapackage ii phonon4qt5-backend-gstreamer:amd64 4:4.10.0-1build1 amd64 Phonon Qt5 GStreamer 1.0 backend ii pinentry-qt 1.1.1-1build2 amd64 Qt-based PIN or pass-phrase entry dialog for GnuPG ii python3-dbus.mainloop.pyqt5 5.15.6+dfsg-1ubuntu3 amd64 D-Bus Qt main loop support for Python 3 ii python3-pyqt5 5.15.6+dfsg-1ubuntu3 amd64 Python 3 bindings for Qt5 ii python3-pyqt5.sip 12.9.1-1build1 amd64 runtime module for Python extensions using SIP ii qdbus-qt5 5.15.3-1 amd64 Qt 5 D-Bus tool ii qml-module-org-kde-bluezqt:amd64 5.92.0-0ubuntu1 amd64 QML wrapper for bluez ii qml-module-qt-labs-folderlistmodel:amd64 5.15.3+dfsg-1 amd64 Qt 5 folderlistmodel QML module ii qml-module-qt-labs-platform:amd64 5.15.3+dfsg-1 amd64 Qt 5 qt.labs.platform QML module ii qml-module-qt-labs-qmlmodels:amd64 5.15.3+dfsg-1 amd64 Qt 5 Qt.labs.qmlmodels QML module ii qml-module-qt-labs-settings:amd64 5.15.3+dfsg-1 amd64 Qt 5 settings QML module ii qml-module-qtgraphicaleffects:amd64 5.15.3-1 amd64 Qt 5 Graphical Effects module ii qml-module-qtmultimedia:amd64 5.15.3-1 amd64 Qt 5 Multimedia QML module ii qml-module-qtqml:amd64 5.15.3+dfsg-1 amd64 Qt 5 QtQml QML module ii qml-module-qtqml-models2:amd64 5.15.3+dfsg-1 amd64 Qt 5 Models2 QML module ii qml-module-qtqml-statemachine:amd64 5.15.3+dfsg-1 amd64 Qt 5 State Machine QML module ii qml-module-qtquick-controls:amd64 5.15.3-1 amd64 Qt 5 Quick Controls QML module ii qml-module-qtquick-controls2:amd64 5.15.3+dfsg-1 amd64 Qt 5 Qt Quick Controls 2 QML module ii qml-module-qtquick-dialogs:amd64 5.15.3-1 amd64 Qt 5 Dialogs QML module ii qml-module-qtquick-layouts:amd64 5.15.3+dfsg-1 amd64 Qt 5 Quick Layouts QML module ii qml-module-qtquick-particles2:amd64 5.15.3+dfsg-1 amd64 Qt 5 particles 2 QML module ii qml-module-qtquick-privatewidgets:amd64 5.15.3-1 amd64 Qt 5 Private Widgets QML module ii qml-module-qtquick-shapes:amd64 5.15.3+dfsg-1 amd64 Qt 5 Qt Quick Shapes QML module ii qml-module-qtquick-templates2:amd64 5.15.3+dfsg-1 amd64 Qt 5 Qt Quick Templates 2 QML module ii qml-module-qtquick-virtualkeyboard:amd64 5.15.3+dfsg-1 amd64 Qt virtual keyboard - QML module ii qml-module-qtquick-window2:amd64 5.15.3+dfsg-1 amd64 Qt 5 window 2 QML module ii qml-module-qtquick-xmllistmodel:amd64 5.15.3-1 amd64 Qt 5 xmllistmodel QML module ii qml-module-qtquick2:amd64 5.15.3+dfsg-1 amd64 Qt 5 Qt Quick 2 QML module ii qml-module-qtwebengine:amd64 5.15.9+dfsg-1 amd64 Qt WebEngine QML module ii qml-module-qtwebkit:amd64 5.212.0~alpha4-15ubuntu1 amd64 Qt WebKit QML module ii qt5-gtk-platformtheme:amd64 5.15.3+dfsg-2ubuntu0.2 amd64 Qt 5 GTK+ 3 platform theme ii qt5-image-formats-plugins:amd64 5.15.3-1 amd64 Qt 5 Image Formats module ii qtchooser 66-2build1 amd64 Wrapper to select between Qt development binary versions ii qtgstreamer-plugins-qt5:amd64 1.2.0-5.1 amd64 GStreamer plugins from QtGStreamer - Qt 5 build ii qtspeech5-flite-plugin:amd64 5.15.3-1 amd64 Speech library for Qt - Flite plugin ii qttranslations5-l10n 5.15.3-1 all translations for Qt 5 ii qtvirtualkeyboard-plugin:amd64 5.15.3+dfsg-1 amd64 Qt virtual keyboard ii qtwayland5:amd64 5.15.3-1 amd64 QtWayland platform plugin ii software-properties-qt 0.99.22.3 all manage the repositories that you install software from (Qt) ii ubuntu-release-upgrader-qt 1:22.04.14 all manage release upgrades ii virtualbox-qt 6.1.38-dfsg-3~ubuntu1.22.04.1 amd64 x86 virtualization solution - Qt based user interface ii vlc-plugin-qt:amd64 3.0.16-1build7 amd64 multimedia player and streamer (Qt plugin) ADDITIONAL INFORMATION using Kubuntu 22.04.1 LTS