https://bugs.kde.org/show_bug.cgi?id=431821
--- Comment #4 from Ivo Šmerek <iv...@centrum.cz> --- I understand, but I'm looking for a way how to add a WM_CLASS to the window, which has this property missing from the start. I guess I can't force a window to go to the withdrawn state and back? As I said, this xprop workaround works fine with Gnome dash and Plank task managers. Devs probably implemented something differently? Couldn't Plasma task manager improve a way how windows with missing WM_CLASS property are handled? I mean, maybe keep checking them and if WM_CLASS appears, map them again and then stop checking? -- You are receiving this mail because: You are watching all bug changes.