I’m creating a simple tauri app where i want to capture user input globally, and show it in the application, something like a keystrokes visualizer.

I’m using rdev crate for this.

the app sometimes runs fine, but after a while, when i press the ctrl key, or alt or just any special keys combination, my main monitor (laptop) goes totally black. and the second monitor stays working.

if i unplug the HDMI cable the main screen comes back to life.
then i can plug it back and continue working.

I’m on Ubutun 24.04.1 LTS

i checked /var/log/syslog
and here is the last couple of lines after the problem happend

Present-flip: queue flip during flip on CRTC 0 failed: Device or resource busy]
2024-09-25T07:24:18.284701+03:00 urboifox gnome-software[50089]: Failed to reload changed app filter: App filtering is globally disabled
2024-09-25T07:24:18.294084+03:00 urboifox /usr/libexec/gdm-x-session[49447]: (WW) modeset(0): Present-flip: queue flip during flip on CRTC 0 failed: Device or resource busy

the rest are literally the same couple of lines but repeated.

and here’s my main.rs code

// Prevents additional console window on Windows in release, DO NOT REMOVE!!
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]

use rdev::{listen, EventType};
use tauri::{self, Manager};


#[derive(Clone, serde::Serialize)]
struct Payload {
    key: String,
}

fn main() {
    tauri::Builder::default()
        .setup(|app| {
            let handle = app.handle();

            std::thread::spawn(move || {
                listen(move |event| match event.event_type {
                    EventType::KeyPress(key) => {
                        let key_name = format!("{:?}", key);
                        handle
                            .emit_all("key-down", Payload { key: key_name })
                            .unwrap()
                    }
                    EventType::KeyRelease(key) => {
                        let key_name = format!("{:?}", key);
                        handle
                            .emit_all("key-up", Payload { key: key_name })
                            .unwrap()
                    }
                    _ => {}
                })
                .unwrap();
            });
            Ok(())
        })
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

I don’t know if it’s the rdev crate, or making the app always top top..
It’s blurry and I don’t think i have the experience to figure this out myself.

thanks for help in advance.