SUMMARY If "Show tooltips" option is checked, when hovering over some programs (like Audacious), plasmashell will freeze for several seconds and then show the thumbnail image, because the thumbnail is read very slowly (located in a network disk mounted by rclone or similar programs). STEPS TO REPRODUCE 1. Check "Show tooltips" in task manager settings. 2. Move your mouse over any program which uses thumbnail from a slow web drive (e.g. Audacious playing music file from a web drive mounted by rclone) OBSERVED RESULT plasmashell freezes for several seconds and then show the thumbnail image. If network is bad, plasmashell is likeyly to hang forever. EXPECTED RESULT Showing the thumbnail should not block other actions. SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20210702 KDE Plasma Version: 5.22.2 KDE Frameworks Version: 5.83.0 Qt Version: 5.15.2 Kernel Version: 5.12.13-1-default (64-bit) Graphics Platform: X11 Processors: 8 × AMD Ryzen 7 4700U with Radeon Graphics Memory: 15.0 GiB of RAM Graphics Processor: AMD RENOIR ADDITIONAL INFORMATION If I enable debug log, I can see outputs like "qt.quick.image: QUrl("file:///<image path located in slow web drive mounted by rclone>")" when the freeze happens.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/520
Can you check whether this MR fixes the problem?
(In reply to Kai Uwe Broulik from comment #2) > Can you check whether this MR fixes the problem? I was just about to fix the bug by myself, Thank you! (https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/521)
Oh, heh, ninja fix, sorry :)
Git commit f4cf34521dbdc8239c717575439da7c003b81b2b by Kai Uwe Broulik. Committed on 05/07/2021 at 12:15. Pushed by broulik into branch 'master'. [Task Manager] Load album art background asynchronously The main image already is but the blurred background was not. FIXED-IN: 5.22.3 M +1 -0 applets/taskmanager/package/contents/ui/ToolTipInstance.qml https://invent.kde.org/plasma/plasma-desktop/commit/f4cf34521dbdc8239c717575439da7c003b81b2b
Git commit 7ea448ae8102876d77a12dd155912a2d34d05896 by Kai Uwe Broulik. Committed on 05/07/2021 at 12:24. Pushed by broulik into branch 'Plasma/5.22'. [Task Manager] Load album art background asynchronously The main image already is but the blurred background was not. FIXED-IN: 5.22.3 (cherry picked from commit f4cf34521dbdc8239c717575439da7c003b81b2b) M +1 -0 applets/taskmanager/package/contents/ui/ToolTipInstance.qml https://invent.kde.org/plasma/plasma-desktop/commit/7ea448ae8102876d77a12dd155912a2d34d05896