see below Reproducible: Always Steps to Reproduce: 1.having several activities with different wallpapers 2.open activity switcher 3. Actual Results: wallpapers of some activities are shown, but not for all Expected Results: all wallpaper previews are shown it is not specific for a specific activity or wallpaper image.
What types of wallpapers are you using. Ordinary images or not?
I am using ordinary images as backgrounds. Different ones for different activities. Some are shown in the activity previews of the switcher, some are not shown but only a gray background as preview.
Can you clear the cache just to make sure it is not causing the problems? Open konsole, and write the following kquitapp5 plasmashell rm ~/.cache/activityswitcher_wallpaper_preview.kcache plasmashell &>/dev/null& This will stop plasma, remove the wallpaper cache file and restart plasmashell.
I did it... ..after restarting plasmashell the preview of another activity then before is gray now.
You mean that a preview of an activity disappeared and that it is grey now? Is it so for all activities or you still have some of them with previews?
I have three activities, 1 "work", 2 "private" and 3 "finances". Before I executed the konsole commands, previews of 1+3 showed the respective wallpapers and 2 was just gray (with a gradient). After the commands: 2+3 showed the respective wallpapers and 1 was just gray. In the meantime, I restarted the notebook, and now 1 showed the respective wallpaper and 2+3 are just gray. So it randomly varies, which wallpapers are shown in the activity previews and which not.
Cool, thanks for the help, I'll see what went wrong with the patch.
Git commit 947f430e6059426904e7744b7d59179053d033bd by Ivan Čukić. Committed on 20/09/2016 at 14:22. Pushed by ivan into branch 'Plasma/5.8'. Fixed loading of the wallpapers in the activity switcher Summary: - Created an asynchronous image provider to return wallpaper thumbnails - Fixed the code that fetches the activity backgrounds from the config file - Removed thumbnail cashing since we are relying on KIO now - Removed the fun callback-based code from the QML/JavaScript side Reviewers: #plasma, davidedmundson, mart Reviewed By: mart Subscribers: plasma-devel Tags: #plasma Differential Revision: https://phabricator.kde.org/D2810 M +6 -42 desktoppackage/contents/activitymanager/ActivityItem.qml M +2 -1 imports/activitymanager/CMakeLists.txt M +3 -3 imports/activitymanager/sortedactivitiesmodel.cpp M +86 -70 imports/activitymanager/switcherbackend.cpp M +1 -7 imports/activitymanager/switcherbackend.h http://commits.kde.org/plasma-desktop/947f430e6059426904e7744b7d59179053d033bd