diff --git a/packages/player-core/src/player.rs b/packages/player-core/src/player.rs
index c0f36e6c..fbd6b0a7 100644
--- a/packages/player-core/src/player.rs
+++ b/packages/player-core/src/player.rs
@@ -246,6 +246,7 @@ impl AudioPlayer {
 
     pub async fn run(mut self) {
         let mut check_end_interval = tokio::time::interval(Duration::from_millis(50));
+        let mut media_controls_events_open = true;
 
         loop {
             tokio::select! {
@@ -258,11 +259,15 @@ impl AudioPlayer {
                         }
                     } else { break; }
                 },
-                msg = self.npc_event_rx.recv() => {
+                msg = self.npc_event_rx.recv(), if media_controls_events_open => {
                     if let Some(event) = msg {
                         self.media_manager
                             .handle_event(event, &self.handler(), &self.evt_sender)
                             .await;
+                    } else {
+                        // A failed media-controls initialization closes the channel.
+                        // Stop polling it or this select loop remains continuously ready.
+                        media_controls_events_open = false;
                     }
                 },
                 _ = check_end_interval.tick() => {
diff --git a/packages/player/src-tauri/src/lib.rs b/packages/player/src-tauri/src/lib.rs
index 847ac993..da1b47dc 100644
--- a/packages/player/src-tauri/src/lib.rs
+++ b/packages/player/src-tauri/src/lib.rs
@@ -17,6 +17,8 @@ use crate::server::AMLLWebSocketServerWrapper;
 
 mod db;
 mod db_events;
+#[cfg(target_os = "linux")]
+mod linux_graphics;
 mod logging;
 mod music_info;
 mod player;
@@ -189,6 +191,9 @@ fn handle_window_event(_window: &tauri::Window, _event: &tauri::WindowEvent) {
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
+    #[cfg(target_os = "linux")]
+    linux_graphics::configure_nvidia_wayland();
+
     // Install ring as the default crypto provider for rustls, because multiple providers
     // (aws-lc-rs and ring) might be enabled in our dependency tree and rustls demands one to be explicitly chosen.
     #[cfg(target_os = "android")]
diff --git a/packages/player/src-tauri/src/linux_graphics.rs b/packages/player/src-tauri/src/linux_graphics.rs
new file mode 100644
index 00000000..3f674f61
--- /dev/null
+++ b/packages/player/src-tauri/src/linux_graphics.rs
@@ -0,0 +1,16 @@
+use std::{env, path::Path};
+
+/// NVIDIA's explicit-sync path can fail when WebKitGTK creates a native
+/// Wayland surface. Disable it before GTK/WebKit initialization on affected
+/// Linux sessions; an existing user value always wins.
+pub(crate) fn configure_nvidia_wayland() {
+    if env::var_os("WAYLAND_DISPLAY").is_none()
+        || env::var_os("__NV_DISABLE_EXPLICIT_SYNC").is_some()
+        || !Path::new("/dev/nvidiactl").exists()
+    {
+        return;
+    }
+
+    // SAFETY: called before Tauri initializes GTK or starts worker threads.
+    unsafe { env::set_var("__NV_DISABLE_EXPLICIT_SYNC", "1") };
+}
diff --git a/packages/player/src/components/LocalMusicContext/index.tsx b/packages/player/src/components/LocalMusicContext/index.tsx
index 5b48795c..1db1cf24 100644
--- a/packages/player/src/components/LocalMusicContext/index.tsx
+++ b/packages/player/src/components/LocalMusicContext/index.tsx
@@ -60,7 +60,7 @@ import { useDbQuery } from "../../utils/use-db-query.ts";
 export const FFTToLowPassContext: FC = () => {
 	const store = useStore();
 	const fftDataRange = useAtomValue(fftDataRangeAtom);
-	// const isLyricPageOpened = useAtomValue(isLyricPageOpenedAtom);
+	const isLyricPageOpened = useAtomValue(isLyricPageOpenedAtom);
 
 	useEffect(() => {
 		emitAudioThread("setFFTRange", {
@@ -70,7 +70,9 @@ export const FFTToLowPassContext: FC = () => {
 	}, [fftDataRange]);
 
 	useEffect(() => {
-		// if (!isLyricPageOpened) return;
+		// The low-frequency value only drives the full-screen lyric background.
+		// Keep this loop stopped while that view is hidden.
+		if (!isLyricPageOpened) return;
 		let rafId: number;
 		let curValue = 1;
 		let lt = 0;
@@ -134,8 +136,7 @@ export const FFTToLowPassContext: FC = () => {
 		return () => {
 			cancelAnimationFrame(rafId);
 		};
-	}, [store]);
-	// }, [store, isLyricPageOpened]);
+	}, [store, isLyricPageOpened]);
 
 	return null;
 };
@@ -362,7 +363,12 @@ export const LocalMusicContext: FC = () => {
 				const duration = store.get(musicDurationAtom) / 1000;
 				const clampedPos = Math.min(newPos, duration || 0);
 
-				store.set(musicPlayingPositionAtom, (clampedPos * 1000) | 0);
+				lastSyncRef.current.position = clampedPos;
+				lastSyncRef.current.timestamp = now;
+				const nextPosition = (clampedPos * 1000) | 0;
+				if (nextPosition !== store.get(musicPlayingPositionAtom)) {
+					store.set(musicPlayingPositionAtom, nextPosition);
+				}
 			} else {
 				const currentUIPosition = store.get(musicPlayingPositionAtom) / 1000;
 				lastSyncRef.current.position = currentUIPosition;