Project Manager control-click on projects not working on Linux

[aaronp64]

Tested versions

v4.5.stable.fedora [876b290], and building from master

System information

Godot v4.5.stable (876b290) - Fedora Linux 42 (Workstation Edition) on Wayland - X11 display driver, Multi-window, 2 monitors - Vulkan (Forward+) - dedicated AMD Radeon RX 6600 (RADV NAVI23) - 12th Gen Intel(R) Core(TM) i3-12100F (8 threads) - 31.14 GiB memory

Issue description

On Windows, holding control while clicking on projects in Project Manager allows selecting multiple projects without selecting a full range like when holding shift. On Linux (specifically using Fedora 42 workstation, haven't tested others), control-clicking will deselect any selected projects on first click, then following clicks on the same project will toggle that project's selection as expected.

I checked selecting multiple nodes in the SceneTree dock with control-clicking, that works ok for me, seems to be specific to the Project Manager list.

Steps to reproduce

Select one (or multiple using shift) projects in Project Manager, then control-click an unselected project, removing the original selection.

Minimal reproduction project (MRP)

N/A

[Calinou]

I can confirm this on 4.6.dev 7d7d479 (Linux, Fedora 42 KDE X11).

Just in case, can you try reproducing this with Prefer Wayland enabled in the Editor Settings (then quit to the project manager)?

I wonder if this is related to what makes Shift + click not work correctly on the Add Sun/Environment to Scene in the preview 3D environment popup on Windows (it only works on Linux for me).

[aaronp64]

I just tried Prefer Wayland, still seeing the issue. Not sure if this is expected with Prefer Wayland, but I still see the below when copying system info:

Godot v4.5.stable (876b29033) - Fedora Linux 42 (Workstation Edition) on Wayland - X11 display driver ...

I also tried running with --display-driver wayland, which changes the system info to the below (but still has the issue):

Godot v4.5.stable (876b29033) - Fedora Linux 42 (Workstation Edition) on Wayland - Wayland display driver ...

--display-driver wayland also gives the warnings below, not sure if anything here is related:

Godot Engine v4.5.stable.fedora.876b29033 - https://godotengine.org
WARNING: Can't obtain the XDG decoration manager. Libdecor will be used for drawing CSDs, if available.
     at: init (platform/linuxbsd/wayland/wayland_thread.cpp:4328)
Invalid value (0) for DRI_PRIME. Should be > 0
Inconsistent value (1) for DRI_PRIME. Should be < 1 (GPU devices count). Using: 0
Inconsistent value (2) for DRI_PRIME. Should be < 1 (GPU devices count). Using: 0
Inconsistent value (3) for DRI_PRIME. Should be < 1 (GPU devices count). Using: 0
OpenGL API 4.6 (Core Profile) Mesa 25.1.9 - Compatibility - Using Device: AMD - AMD Radeon RX 6600 (radeonsi, navi23, LLVM 20.1.8, DRM 3.64, 6.16.12-200.fc42.x86_64)

[LahiruDilhara]

can you assign me to solve this issue

[Zireael07]

@LahiruDilhara Godot does not practice assigning people to issues

[LahiruDilhara]

ok. I'll work on this issue.

[Rindbee]

It appears to be a regression from #76829. CC @bruvzg

godot/editor/project_manager/project_list.cpp

Lines 118 to 128 in eb3d6d8

	case NOTIFICATION_FOCUS_ENTER: {
	ProjectList *pl = get_list();
	if (pl) {
	int idx = pl->get_index(this);
	if (idx >= 0) {
	pl->ensure_project_visible(idx);
	pl->select_project(idx);
	pl->emit_signal(SNAME(ProjectList::SIGNAL_SELECTION_CHANGED));
	}
	}

godot/editor/project_manager/project_list.cpp

Lines 1064 to 1065 in eb3d6d8

	} else if (mb->is_command_or_control_pressed()) {
	_toggle_project(clicked_index);

The control was selected twice. Pressing Ctrl will toggle it to unselected.