Bug 472876

Summary: No wallpaper plugins display content on the Breeze Lock screen; you just see a black background
Product: [Plasma] plasmashell Reporter: Patrick Silva <bugseforuns>
Component: Theme - BreezeAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED FIXED    
Severity: major CC: nate, piotr.mierzwinski, qydwhotmail, visual-design
Priority: NOR Keywords: qt6
Version First Reported In: master   
Target Milestone: 1.0   
Platform: Neon   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/kscreenlocker/-/commit/1cadab0acbbc09c98ff9b3e1ea534105e68c7799 Version Fixed In:
Sentry Crash Report:
Bug Depends on:    
Bug Blocks: 470599    

Description Patrick Silva 2023-08-01 12:53:33 UTC 
STEPS TO REPRODUCE
1. open Screen Locking KCM
2. click on "Configure..." button
3. set the Wallpaper type to "Slideshow" mode and choose a folder containing images
4. set "Change every" to 5 seconds for test purposes
5. apply the changes
6. lock your screen

OBSERVED RESULT
the background is a solid black color and it never changes

EXPECTED RESULT
slideshow background works

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.240.0
Qt Version: 6.6.0
Graphics Platform: Wayland
Comment 1 Nate Graham 2023-08-01 19:48:55 UTC 
Can reproduce.
Comment 2 Nate Graham 2023-08-02 17:25:38 UTC 
Seems to affect all wallpaper plugins, in fact. I believe it's a problem with the shader.
Comment 3 Nate Graham 2023-08-02 17:26:06 UTC 
*** Bug 472926 has been marked as a duplicate of this bug. ***
Comment 4 David Redondo 2023-08-23 14:56:30 UTC 
Git commit 1cadab0acbbc09c98ff9b3e1ea534105e68c7799 by David Redondo.
Committed on 23/08/2023 at 16:53.
Pushed by davidre into branch 'master'.

greeter: Make wallpapers work in Plasma 6

In Plasma 6 wallpapers instantiate WallpaperItem as root item
themselves. So we need to let our wrapper gain the full API, make
it an item and register it to be instantiated. Because pluginName
and configuration are CONSTANT upstream we need to make sure they
are already correct when the item is complete.
Related: bug 470601

M  +28   -14   greeter/greeterapp.cpp
M  +1    -1    greeter/greeterapp.h
M  +1    -0    settings/CMakeLists.txt
M  +1    -1    settings/appearancesettings.cpp
M  +2    -2    settings/wallpaper_integration.cpp
M  +16   -3    settings/wallpaper_integration.h

https://invent.kde.org/plasma/kscreenlocker/-/commit/1cadab0acbbc09c98ff9b3e1ea534105e68c7799