SUMMARY plasma-login-wallpaper shows only a black screen when used with current master branch of libplasma. Probably caused by https://invent.kde.org/plasma/libplasma/-/commit/c7e0ba9bb929c0bc6817cc676235d036f5ac04da QFSFileEngine::open: No file name specified file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:52: TypeError: Value is null and could not be converted to an object file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:62: TypeError: Cannot read property Blur of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:61: TypeError: Cannot read property Color of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:60: TypeError: Cannot read property FillMode of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:88: TypeError: Cannot read property UncheckedSlides of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:87: TypeError: Cannot read property SlideshowFoldersFirst of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:86: TypeError: Cannot read property SlideshowMode of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:85: TypeError: Cannot read property SlideInterval of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:84: TypeError: Cannot read property SlidePaths of null file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:67: TypeError: Cannot read property PreviewImage of null STEPS TO REPRODUCE 1. Build plasma-login with master libplasma OBSERVED RESULT Only a black screen is displayed instead of the expected wallpaper. EXPECTED RESULT The wallpaper should render properly on the login screen. SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
*** Bug 509144 has been marked as a duplicate of this bug. ***
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-login-manager/-/merge_requests/26
(In reply to Bug Janitor Service from comment #2) > A possibly relevant merge request was started @ > https://invent.kde.org/plasma/plasma-login-manager/-/merge_requests/26 I created a package with this patch and the master branch with the latest changes. Everything works great. Thanks.
Git commit d232ba79544b5f938aa3ae20d6621328ee1b5098 by David Edmundson, on behalf of Oliver Beard. Committed on 24/10/2025 at 10:45. Pushed by davidedmundson into branch 'master'. frontend/wallpaper: Adapt to WallpaperItem config changes This commit fixes the wallpaper by adapting to changes in how the wallpaper loads configuration in libplasma@c7e0ba9b. M +29 -16 src/frontend/wallpaper/wallpaperapp.cpp M +0 -2 src/frontend/wallpaper/wallpaperapp.h https://invent.kde.org/plasma/plasma-login-manager/-/commit/d232ba79544b5f938aa3ae20d6621328ee1b5098
*** Bug 511062 has been marked as a duplicate of this bug. ***