open gwenview on commandline, is starts properly Go to a folder with images Sometimes, thumbnails are displayed correctly, but when gwenview is about to display an image (double-clicking on a thumbnail) it crashes. Coredumpctl shows problems with /usr/libexec/kf6/kioworker and /usr/bin/gwenview, but a 'bt full' is not available due to No symbol table info available. (gdb) quit The only messages i get are: $ gwenview org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/avci" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/hej2k" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/vnd.radiance" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-epson-erf" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-hasselblad-3fr" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-hasselblad-fff" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-leaf-mos" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-mamiya-mef" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-minolta-mdc" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-pfm" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-phaseone-iiq" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-phm" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-pxr" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-samsung-srw" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-sct" org.kde.kdegraphics.gwenview.lib: Unresolved mime type "image/x-sinar-sti" org.kde.kdegraphics.gwenview.lib: Unresolved raw mime type "image/x-samsung-srw" QPainter::begin: Paint device returned engine == 0, type: 2 QPainter::setOpacity: Painter not active QPainter::end: Painter not active, aborted KCrash: Application 'kioworker' crashing... crashRecursionCounter = 2 KCrash: Application 'kioworker' crashing... crashRecursionCounter = 2 KCrash: Application 'kioworker' crashing... crashRecursionCounter = 2 QPropertyAnimation::updateState (opacity): Changing state of an animation without target QPropertyAnimation::updateState (geometry): Changing state of an animation without target KCrash: Application 'gwenview' crashing... crashRecursionCounter = 2 Segmentation fault (core dumped) === Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.80 KDE Frameworks Version: 6.18.0 Qt Version: 6.9.1 Kernel Version: 6.16.4-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland nightly build, gwenview-libs-25.11.70~5.git1f1d64c-1.fc42.x86_64 gwenview-25.11.70~5.git1f1d64c-1.fc42.x86_64 kf6-kio-core-libs-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kf6-kio-doc-6.18.0~12.gita8d2aaa-1.fc42.noarch kf6-kio-gui-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kf6-kio-core-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kf6-kio-widgets-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kf6-kio-widgets-libs-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kf6-kio-file-widgets-6.18.0~12.gita8d2aaa-1.fc42.x86_64 kio-extras-25.11.70~12.git0b8f753-1.fc42.x86_64
This is due to the new Exiv2 build in updates-testing, more info here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-49cb471dc1 New Exiv2 builds are ready but I have not tested them yet.
yes, a downgrade to exiv2 0.28.5-1.fc42 helped thanks!