https://bugs.kde.org/show_bug.cgi?id=408325
--- Comment #11 from Bastian Beischer <bastian.beisc...@rwth-aachen.de> --- I believe this bug is triggered for X11 on systems which do not actually have a touchpad. I think the problem is: Since https://github.com/KDE/plasma-desktop/commit/ce84d6ab4babc80707f4e4c1deb02cfe3ac5b7bb TouchpadConfigContainer::m_plugin is null, because TouchpadBackend::implementation() does not have m_mode properly set. setMode() is supposed to be called in XlibBackend::findTouchpad(), but this goes through the list of touchpads, which can be none, and calls setMode() on each such touchpad. So setMode() is never actually called and m_mode is (implicitly!) initialized to WaylandLibinput (since it does not get set in TouchpadBackend constructor). Then getMode() does not return any of the expected cases in isPlatformX11() branch, which means m_plugin stays a nullptr and then there is a crash in TouchpadConfigContainer::sizeHint(). -- You are receiving this mail because: You are watching all bug changes.
