System: Arch Linux (self modified), KF5.43rc1 (it's not in repository), Plasma 5.12.0, amdgpu for Sea Islands with DC, kernel 4.15.1. This bug occours only in Icon View (Tree and Sidebar View works ok). When I try to select Compositor in Display and Monitor section, SystemSettings closes itself suddenly. I thought, that this bug is similar to: KDEBUG389978, but I don't think so, becouse there is different output in gdb. Only one usefull information is: "kscreen.kwayland: Loading Wayland backend. [New Thread 0x7fffb1f59700 (LWP 19475)] [New Thread 0x7fffb1758700 (LWP 19476)] [New Thread 0x7fff9da0d700 (LWP 19477)] [New Thread 0x7fff9d20c700 (LWP 19478)] wl_display@1: error 0: invalid object 91 The Wayland connection experienced a fatal error (Invalid argument) [Thread 0x7fff9da0d700 (LWP 19477) exited] [Thread 0x7fffc9ffb700 (LWP 19433) exited] [Thread 0x7fffc97fa700 (LWP 19434) exited] [Thread 0x7fffca7fc700 (LWP 19432) exited] [Thread 0x7fffcaffd700 (LWP 19431) exited] [Thread 0x7fffcb7fe700 (LWP 19430) exited] [Thread 0x7fffcbfff700 (LWP 19429) exited] [Thread 0x7fffd1122700 (LWP 19428) exited] [Thread 0x7fffe269e700 (LWP 19427) exited] [Thread 0x7fff9d20c700 (LWP 19478) exited] [Thread 0x7fffb1758700 (LWP 19476) exited] [Thread 0x7fffb275a700 (LWP 19474) exited] [Thread 0x7ffff7f8d800 (LWP 19423) exited] [Inferior 1 (process 19423) exited with code 01]"
Cannot reproduce in: Plasma: 5.12.5 Apps: 18.04.0 Frameworks: 5.46.0 Qt: 5.10.1 Kernel: 4.14.40-1-MANJARO OS: Netrunner Rolling Video: Intel 4400 Driver: xf86-video-intel 1:2.99.917+823+gd9bf46e4-1 Screen: 1600x900 wayland-protocols 1.13-1 wayland 1.14.0-1
Works here too, Plasma 5.12 is super old in wayland terms. Please reopen if it's an issue on new plasma 5.15 with Qt5.12 or newer