Mouse click frame drop on Bevy 0.14.0

[JonasAAA]

Bevy version

• Original: 0.13.2
• Current: 0.14.0

Relevant system information

Rust version: 1.79.0
OS: Ubuntu 24.04
CPU: AMD Ryzen 5 2600 Six-Core Processor
RAM: 15.5 GiB

What's performing poorly?

When I left or right click the mouse in a very basic Bevy 0.14.0 project, the FPS drops to 10, even in release mode. With Bevy 0.13.2 the FPS drops to 30 when I click the mouse, so still problematic, but not nearly as disruptive.

Small example which reproduces the issue is at https://github.com/JonasAAA/Bevy-Lag. The Bevy 0.13 version of the same code is at https://github.com/JonasAAA/Bevy-Lag/tree/bevy_0.13. Run cargo run --release and click the mouse to reproduce the issue.

Additional information

This issue seems very similar to #14216.

[SpecificProtagonist]

Works fine for me (Manjaro, X11, Nvidia gpu). Are you using X or Wayland?

[JonasAAA]

Are you using X or Wayland?

I'm using X.

[codaishin]

I have the same issue (Ubuntu 24.04 LTS, AMD Ryzen 5 PRO 4650G, NVIDIA GeForce RTX 3060 Ti, X11) for left, middle and right mouse buttons. Other mouse buttons work fine. When using wayland this issue doesn't seem to be present.

[janhohenheim]

That seems fairly huge for our X11 support 👀
It would be nice if other people could report whether they get the same kinds of numbers (10 FPS) on X to see how widespread this is.

[JonasAAA]

The game also drops to 10 fps when I do almost any action while the game window is selected, even things not involving the mouse, e.g. change keyboard language (using keyboard shortcut), pressing windows key, opening a terminal through a keyboard shortcut, etc.
But as expected, pressing random keys doesn't change the fps.