diff --git a/src/cthulhu/event_manager.py b/src/cthulhu/event_manager.py
index a507ab9..2e43e21 100644
--- a/src/cthulhu/event_manager.py
+++ b/src/cthulhu/event_manager.py
@@ -112,6 +112,13 @@ class EventManager:
             cthulhu_state.device.key_watcher = cthulhu_state.device.add_key_watcher(
                 self._processNewKeyboardEvent)
             self.newKeyHandlingActive = True
+            
+            # Notify plugin system that device is now available for keybinding registration
+            from . import cthulhu
+            if hasattr(cthulhu, 'cthulhuApp') and cthulhu.cthulhuApp:
+                plugin_manager = cthulhu.cthulhuApp.getPluginSystemManager()
+                if plugin_manager:
+                    plugin_manager.register_plugin_keybindings_with_active_script()
 
     def activateLegacyKeyHandling(self):
         if not self.legacyKeyHandlingActive:
diff --git a/src/cthulhu/plugin_system_manager.py b/src/cthulhu/plugin_system_manager.py
index 60326d6..04407fd 100644
--- a/src/cthulhu/plugin_system_manager.py
+++ b/src/cthulhu/plugin_system_manager.py
@@ -185,11 +185,17 @@ class PluginSystemManager:
                 # Check if binding already exists to avoid duplicates
                 if not active_script.getKeyBindings().hasKeyBinding(binding, "keysNoMask"):
                     active_script.getKeyBindings().add(binding)
+                    # Force recalculation of keycode if it wasn't set when device was None
+                    if not binding.keycode and binding.keysymstring:
+                        from . import keybindings
+                        binding.keycode = keybindings.getKeycode(binding.keysymstring)
                     # Register key grab at system level - this was missing!
                     from . import cthulhu
                     grab_ids = cthulhu.addKeyGrab(binding)
                     if grab_ids:
                         binding._grab_ids = grab_ids
+                    else:
+                        logger.warning(f"Failed to create key grab for {binding.keysymstring} - device may not be available")
 
     def _on_settings_changed(self, app=None):
         """Re-register all plugin keybindings when settings change."""