tty: Disable dmabuf global before destroying

src/backend/tty.rs

@@ -402,10 +402,24 @@ impl Tty {
         }
 
         let mut device = self.output_device.take().unwrap();
-        niri.dmabuf_state
-            .destroy_global::<State>(&niri.display_handle, self.dmabuf_global.take().unwrap());
         device.gles.unbind_wl_display();
 
+        let global = self.dmabuf_global.take().unwrap();
+        niri.dmabuf_state
+            .disable_global::<State>(&niri.display_handle, &global);
+        niri.event_loop
+            .insert_source(
+                Timer::from_duration(Duration::from_secs(10)),
+                move |_, _, state| {
+                    state
+                        .niri
+                        .dmabuf_state
+                        .destroy_global::<State>(&state.niri.display_handle, global);
+                    TimeoutAction::Drop
+                },
+            )
+            .unwrap();
+
         niri.event_loop.remove(device.token);
     }
 

src/handlers/mod.rs

@@ -202,9 +202,11 @@ impl DmabufHandler for State {
         dmabuf: Dmabuf,
         notifier: ImportNotifier,
     ) {
-        let renderer = self.backend.renderer().expect(
+        let Some(renderer) = self.backend.renderer() else {
-            "the dmabuf global must be created and destroyed together with the output device",
+            notifier.failed();
-        );
+            return;
+        };
+
         match renderer.import_dmabuf(&dmabuf, None) {
             Ok(_texture) => {
                 let _ = notifier.successful::<State>();