https://bugs.kde.org/show_bug.cgi?id=431821
--- Comment #3 from David Redondo <k...@david-redondo.de> --- If I read the spec correctly the window manager can assume that WM_CLASS of a window basically never changes once it is mapped. So I assume that when you use xprop it is to late because the window is mapped. See https://www.x.org/releases/X11R7.6/doc/xorg-docs/specs/ICCCM/icccm.html#wm_class_property and https://www.x.org/releases/X11R7.6/doc/xorg-docs/specs/ICCCM/icccm.html#changing_window_state -- You are receiving this mail because: You are watching all bug changes.