gtk4-layer-shell crashes when switching between outputs

[ildar]

Describe the bug

https://github.com/wmww/gtk4-layer-shell

Reproduction steps

1. install or build demo app
2. run it
3. choose Monitor
4. crash

Relevant parts of config

No response

Version info

pinnacle 0.2.3

Build Info:
Build profile: release
rustc version: 1.91.0
Branch: VERGEN_IDEMPOTENT_OUTPUT
Commit: VERGEN_IDEMPOTENT_OUTPUT (VERGEN_IDEMPOTENT_OUTPUT)

Distro

ALTLinux p11

GPU

i965

Config language

Lua

[ildar]

Why it is so important?
Ironbar 0.18 and later crashes the same way.

[ildar]

log

Details

(gtk4-layer-demo:2397032): Gtk-WARNING **: 18:40:29.784: Unknown key gtk-fallback-icon-theme in /home/ildar/.config/gtk-4.0/settings.ini MESA-INTEL: warning: ../src/intel/vulkan/anv_formats.c:949: FINISHME: support YUV colorspace with DRM format modifiers MESA-INTEL: warning: ../src/intel/vulkan/anv_formats.c:981: FINISHME: support more multi-planar formats with DRM modifiers

(gtk4-layer-demo:2397032): Gtk-WARNING **: 18:40:30.231: GtkImage 0x557d19ce24a0 reported baselines of minimum -2147483648 and natural -2147483648, but sizes of minimum 16 and natural 16. Baselines must be inside the widget size.

(gtk4-layer-demo:2397032): Gtk-WARNING **: 18:40:30.231: GtkImage 0x557d19b29760 reported baselines of minimum -2147483648 and natural -2147483648, but sizes of minimum 16 and natural 16. Baselines must be inside the widget size.

(gtk4-layer-demo:2397032): Gtk-WARNING **: 18:40:30.231: GtkImage 0x557d19b2ce60 reported baselines of minimum -2147483648 and natural -2147483648, but sizes of minimum 16 and natural 16. Baselines must be inside the widget size.

(gtk4-layer-demo:2397032): Gtk-WARNING **: 18:40:30.231: GtkImage 0x557d19b2dc50 reported baselines of minimum -2147483648 and natural -2147483648, but sizes of minimum 16 and natural 16. Baselines must be inside the widget size.

[Ph4ntomas]

Does it work on other compositor ? The crash only contains Gtk warnings, it's not really obvious what the issue is (or that it caused by pinnacle)

Can you run with WAYLAND_DEBUG and pick those logs as well ?

[Ottatop]

For me it crashes with a similar error to quickshell, at least according to the DisconnectReason here:

2026-02-26T21:27:56.016906Z ERROR pinnacle::state: ProtocolError(ProtocolError { code: 1, object_id: 66, object_interface: "zwlr_layer_surface_v1", message: "width 0 requested without setting left and right anchors" })

Also happens on cosmic.

What I find strange is that this error immediately terminates the Wayland connection, meaning the client doesn't receive the Wayland error and instead dies with a broken pipe. More strange is that it doesn't happen on niri. Even more strange is that WAYLAND_DEBUG doesn't show any set_size calls with 0 width.