bottles: gamescope does not launch

[0n-s]

Nixpkgs version

• Unstable (25.11)

Describe the bug

Gamescope in Bottles simply does not launch. Logs indicate it is missing libraries it needs.

Steps to reproduce

1. Create a bottle
2. Enable Gamescope in bottle settings, and configure its settings (gear on the Gamescope option) properly (depends on the program you use to test, there are explanations in the menu)
3. Run any program.

Expected behaviour

Gamescope should launch with full functionality.

Screenshots

No response

Relevant log output

libdecor-gtk-WARNING: Could not get required globals
Failed to load plugin 'libdecor-gtk.so': failed to init
libdecor-cairo-WARNING: Could not get required globals
Failed to load plugin 'libdecor-cairo.so': failed to init
No plugins found, falling back on no decorations
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
[gamescope] [Info]  vulkan: selecting physical device 'Intel(R) UHD Graphics 620 (KBL GT2)': queue family 0 (general queue family 0)
[gamescope] [Info]  vulkan: physical device supports DRM format modifiers
[gamescope] [Info]  wlserver: [backend/headless/backend.c:67] Creating headless backend
[gamescope] [Error] xdg_backend: Couldn't create Wayland input objects.
[gamescope] [Error] xdg_backend: Failed to initialize input thread
SDL_Vulkan_CreateSurface failed: VK_KHR_wayland_surface extension is not enabled in the Vulkan instance.terminate called without an active exception

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.15.0, NixOS, 25.11 (Xantusia), 25.11pre808478.910796cabe43
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.28.3
• channels(root): "nixos"
• nixpkgs: /nix/store/vjlm88100jbf6glw52c3czcs8dzfz480-nixos/nixos

Notify maintainers

@psydvl
@SCOTT-HAMILTON
@Gliczy
@XBagon

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[Gliczy]

This is an issue with gamescope itself, see #406993 (review).

[Gliczy]

Upstream issue: ValveSoftware/gamescope#1825.