[TRACKER] XWayland-related issues

[Riteo]

Godot version

Various, mostly 4.x

System information

Linux/BSD - Wayland

Issue description

Lately lots of Linux distributions (such as Fedora 34, Debian 10 "buster" and Ubuntu 21.04) have been switching to Wayland compositors as their default windowing solution and many people don't even know that they're actually running one.

Luckily, people can still use Godot through a compatibility mechanism that most compositors have, called XWayland, which allows them to run X11 unmodified applications seamlessly.

It works fine most of the time but sadly it looks like that Godot, for whatever reason, doesn't work that well with it, manifesting issues that can't be replicated on common X11 window managers.

The above and the fact that most people aren't seemingly aware of XWayland are causing confusion in multiple bug reports lately.

The purpose of this tracker is to have all the currently known XWayland issues in one place to aid future bug reports.

4.x issues

Tasks

Preview Give feedback

1. Keyboard input ignored in some editor fields using a Wayland session (DisplayServer regression) #57288
   bug confirmed platform:linuxbsd regression topic:input topic:porting +6
2. Vulkan: Glitching and laggy UI on Wayland #74168
   bug confirmed platform:linuxbsd topic:porting topic:rendering topic:thirdparty +6
3. [4.0] weird focus behavior on window with child windows #75140
   bug platform:linuxbsd topic:porting +3
4. [Linux] Upon any file/folder creation inside of Godot; crashes the Hyprland session #75752
   bug platform:linuxbsd topic:editor topic:porting +4
5. Pop-up windows instantly minimize on Fedora Linux 38 GNOME (DisplayServer regression) #77333
   bug confirmed platform:linuxbsd regression topic:porting +5
6. Godot editor hangs on opening a menu on Linux using wayland #78487
   bug platform:linuxbsd regression topic:porting +4
7. Add node window shrinks down really small with non-standard scaling (120%) on KDE Wayland (DisplayServer regression) #75515
   bug confirmed platform:linuxbsd topic:editor topic:porting +5
8. Resizing subwindows / popups does not work correctly #74723
   bug platform:linuxbsd topic:porting +3
9. Float Script Editor other Workspace slow #78818
   bug platform:linuxbsd topic:editor topic:porting +4
10. Saving scene hangs on Creating Thumbnail on Wayland #79102
    archived bug platform:linuxbsd topic:porting +4
11. Godot freezes when create a new animation on node AnimatedSprite2D #79677
    bug platform:linuxbsd topic:porting +3
12. Clicking on a search field breaks the window on Linux #79820
    bug platform:linuxbsd topic:gui +3
13. Unwanted warping when the cursor leaves the window boundaries after warp_mouse() was called with MOUSE_MODE_HIDDEN on Linux Wayland #80008
    bug platform:linuxbsd topic:gui +3
14. Black rectangles over new UI elements when using Wayland #81732
    bug platform:linuxbsd topic:porting topic:rendering +4
15. Wayland window dialogues expiring instantly #82205
    archived bug platform:linuxbsd topic:porting +4
16. Attach Node Script's Path Browse "Open Script / Choose Location" Window is Unresponsive #85342
    bug needs testing platform:linuxbsd topic:porting +4
17. Main submenus are all black sometimes (XWayland windows, Nvidia) #93892
    bug platform:linuxbsd topic:porting +3
18. Very small default min window size in hyprland. #96137
    bug needs testing platform:linuxbsd topic:gui +4
19. Sub-window graphics issues with Forward+ on Raspberry Pi #99343
    bug platform:linuxbsd topic:porting +3

(for #77333, unsure, some people report it also with native X11)

3.x issues

Tasks

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1. Unfocusing game window causes the FPS to drop to 1 when v-sync is enabled and SwayWM/Wayland is used #44741
   bug platform:linuxbsd topic:rendering +3

Workaround

Most of those are windowing related (4.x) and can be worked around by running Godot with single window mode. To enable it, either go in the editor settings or run Godot with the --single-window CLI argument.

Steps to reproduce

Run Godot on a Wayland compositor through XWayland.

Minimal reproduction project

N/A

Production team edit: to make the lists use the [tasklist] format

[kmare]

An additional workaround that actually worked for me, is enabling the "Update continuously" option under Editor settings -> Interface -> Editor.
Have to do that only for my Nvidia+Wayland desktop PC. On my laptop with Intel+Wayland, everything is fine.