diff --git a/server/src/main.rs b/server/src/main.rs
index 0f940ac..c82a304 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -38,22 +38,39 @@ fn list_gc311_devices() -> anyhow::Result<Vec<String>> {
     Ok(v)
 }
 
-/// background task: whenever GC311 disappears, cycle USB port
-async fn monitor_gc311_disconnect() -> anyhow::Result<()> {
-    let mut mon = MonitorBuilder::new()?
-        .match_subsystem("usb")?
-        .match_tag("PRODUCT", "7ca/3311/*")? // vendor: 0x07ca, device 0x3311
-        .listen()?;
+// /// background task: whenever GC311 disappears, cycle USB port
+// async fn monitor_gc311_disconnect() -> anyhow::Result<()> {
+//     let mut mon = MonitorBuilder::new()?
+//         .match_subsystem("usb")?
+//         // .match_tag("PRODUCT", "7ca/3311/*")? // vendor: 0x07ca, device 0x3311
+//         .listen()?;
 
-    while let Some(ev) = mon.next() {
-        if ev.event_type() == udev::EventType::Remove {
-            if let (Some(bus), Some(dev)) = (ev.attribute_value("busnum"), ev.attribute_value("devnum")) {
-                usb_reset::cycle_port(bus.to_str().unwrap(), dev.to_str().unwrap());
-            }
-        }
-    }
-    Ok(())
-}
+//     // Blocking I/O -> move into a dedicated thread
+//     tokio::task::spawn_blocking(move || {
+//         for ev in mon {                          // `Socket` implements `Iterator`
+//             if ev.event_type() == udev::EventType::Remove {
+//                 if let (Some(prod), Some(bus), Some(dev)) =
+//                     (ev.attribute_value("PRODUCT"),
+//                      ev.attribute_value("busnum"),
+//                      ev.attribute_value("devnum"))
+//                 {
+//                     // 0x07ca / 0x3311  == AVerMedia GC311
+//                     if prod.to_str().map_or(false, |p| p.starts_with("7ca/3311/")) {
+//                         usb_reset::cycle_port(bus.to_str().unwrap(),
+//                                               dev.to_str().unwrap());
+//                     }
+//                 }
+//             }
+//         }
+//     });
+//     //     if ev.event_type() == udev::EventType::Remove {
+//     //         if let (Some(bus), Some(dev)) = (ev.attribute_value("busnum"), ev.attribute_value("devnum")) {
+//     //             usb_reset::cycle_port(bus.to_str().unwrap(), dev.to_str().unwrap());
+//     //         }
+//     //     }
+//     // }
+//     Ok(())
+// }
 
 /*─────────────────── tonic service ─────────────────────*/
 struct Handler {
@@ -153,7 +170,7 @@ async fn main() -> anyhow::Result<()> {
     .init();
 
     /* auto‑cycle task */
-    tokio::spawn(async { monitor_gc311_disconnect().await.ok(); });
+    // tokio::spawn(async { monitor_gc311_disconnect().await.ok(); });
 
     let kb = OpenOptions::new()
         .write(true)