Created attachment 162165 [details] Duplicates in taskbar SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Boot 2. Start Firefox which restores multiple windows at once very quickly 3. Happens almost always on fresh boot OBSERVED RESULT Have duplicates in Task Manager/task bar. See screenshot. The Firefox has opened 8 windows plus 1 Alacritty, There are duplicates for the Firefox windows The duplicates are always on the left. There can be more duplicates. See screenshot: 1 true Alacritty, two duplicates. Sometimes some of them disappear but not all after some interactions with taskbar. Sometimes they turn blank or just the title is clears. right clicking them shows a menu with grayed out close option. EXPECTED RESULT No duplicates or ghost windows in task bar SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.27.8 (available in About System) KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.110.0 Qt Version: 5.15.10 ADDITIONAL INFORMATION Also sometimes random crashes of kwin when activating a window via task bar which might be related.
Created attachment 162166 [details] Empty ghost tasks
Hi what a weird bug. As one of the symptoms is a crash could you attach the backtrace so we can figure out what's going on. Can you please attach a backtrace of the crash using the coredumpctl command-line program, as detailed in https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl? Additionally or alternatively maybe you can attach a wayland log of plasmashell to do that run WAYLAND_DEBUG=1 plasmashell from a terminal and attach the output if the situation with duplicate tasks occurs. thank you!
I was able to recompile with debug symbols have submitted a crash report: https://bugs.kde.org/show_bug.cgi?id=475742
I have tried removing the Power widget as mentioned here https://bugs.kde.org/show_bug.cgi?id=471315#c15 and the crashes as well as this bug appear to be resolved.
How very weird.