Caught signal 6 Aborted
libX11.so.6!XIfEvent(+0x74)
libX11.so.6!UnknownFunction(0x728ef)
libX11.so.6!UnknownFunction(0x74073)
libX11.so.6!_XimRead(+0x51)
libX11.so.6!UnknownFunction(0x61f7a)
libUnrealEditor-ApplicationCore.so!X11_StartTextInput [/SDL-gui-backend/src/video/x11/SDL_x11keyboard.c:683]
libUnrealEditor-ApplicationCore.so!SDL_SetKeyboardFocus [/SDL-gui-backend/src/events/SDL_keyboard.c:373]
libUnrealEditor-ApplicationCore.so!X11_DispatchEvent [/SDL-gui-backend/src/video/x11/SDL_x11events.c:475]
libUnrealEditor-ApplicationCore.so!X11_PumpEvents [/SDL-gui-backend/src/video/x11/SDL_x11events.c:2145]
libUnrealEditor-ApplicationCore.so!SDL_PumpEventsInternal [/SDL-gui-backend/src/events/SDL_events.c:1453]
libUnrealEditor-ApplicationCore.so!SDL_WaitEventTimeoutNS [/SDL-gui-backend/src/events/SDL_events.c:1628]
libUnrealEditor-ApplicationCore.so!FLinuxPlatformApplicationMisc::PumpMessages(bool) [/mnt/horde/++UE5/Sync/Engine/Source/./Runtime/ApplicationCore/Private/Linux/LinuxPlatformApplicationMisc.cpp:458]
UnrealEditor!FEngineLoop::Tick() [/mnt/horde/++UE5/Sync/Engine/Source/./Runtime/Launch/Private/LaunchEngineLoop.cpp:5773]
UnrealEditor!GuardedMain(char16_t const*) [/mnt/horde/++UE5/Sync/Engine/Source/./Runtime/Launch/Private/Launch.cpp:60]
libUnrealEditor-UnixCommonStartup.so!CommonUnixMain(int, char**, int (*)(char16_t const*), void (*)()) [/mnt/horde/++UE5/Sync/Engine/Source/./Runtime/Unix/UnixCommonStartup/Private/UnixCommonStartup.cpp:323]
libc.so.6!UnknownFunction(0x27674)
libc.so.6!__libc_start_main(+0x88)
> Running Wayland + XWayland with SDL3 set to X11 mode seems to solve all those problems for us
But I encountered all the same problems with the pre-built version.
As you can see from the video, I followed the "Steps to Reproduce" up there, and I got the problem described before
- double click
- can’t click anything
It make my plasmashell crashes, so the background is black. I can’t click anything, so I killed the app with task manager, and got the callstack above,