[Wayland] Redot always in Borderless mode

[JoltedJon]

Tested versions

Needs testing tracked in Godot.

Not reproducible when using Hyprland as all windows are borderless but freely resizable

System information

Redot v26.2.alpha.1 (dde68ad) - Arch Linux #1 SMP PREEMPT_DYNAMIC Wed, 25 Feb 2026 23:12:35 +0000 on Wayland - X11 display driver, Multi-window, 1 monitor - Vulkan (Forward+) - dedicated AMD Radeon RX 9070 XT (RADV GFX1201) - AMD Ryzen 7 9800X3D 8-Core Processor (16 threads) - 30.50 GiB memory

Issue description

godotengine/godot#89793 mentions that Wayland will run in borderless and doesn't allow resizing

Steps to reproduce

On wayland machine run exectuable with --display-driver wayland and see if it's in borderless mode

Minimal reproduction project (MRP)

N/A

[VictorSohier]

Tested under KDE to check for server-side decorations. These exist. This is a GNOME problem, not a Redot problem assuming Redot is okay with just server-side decorations. To fix this for GNOME, Redot would need to implement client-side decorations.

I say this is a GNOME problem as they refuse to implement server-side decorations, of which, I am sure the overwhelming consensus is that it is a bone-headed move of the GNOME team.

Images are from KDE.

[JoltedJon]

@Arctis-Fireblight Thoughts on this? It sounds like this is purely a gnome issue due to how they implemented wayland

[Arctis-Fireblight]

@Arctis-Fireblight Thoughts on this? It sounds like this is purely a gnome issue due to how they implemented wayland

Sorry, didnt notice your ping before x_x

But yeah, there are a lot of issues with Wayland support in general. Each Desktop Environment basically picks and chooses which parts of the spec they want to implement. GNOME in particular is very... Opinionated... With their Wayland implementation. I dont have screenshots to see the original issue, but it is likely as T3CHN0 describes with the window decorations.

The Wayland spec allows for client side decorations, where the application is responsible for drawing its title bar and close buttons and stuff. And then there is server side where the compositor will draw that stuff. The Wayland spec defines both in the API.

However, some desktop environments, like GNOME, decide to only implement one or the other, and in the case of GNOME they require client side decorations. Vs more sane DEs like KDE Plasma support both... The proper fix for this will be for us to detect if the compositor does not support server side decorations some how, and then render those ourselves for DEs like GNOME...

[GeneralProtectionFault]

I want to add these issues which I actually opened ages ago in the Godot repo:
godotengine/godot#92823 (comment)
godotengine/godot#114842

These were problems I experienced on KDE, back to when they first added Wayland.