diff --git a/rdp-proxy/manager.py b/rdp-proxy/manager.py
index 9f07c2c..a5a8bb5 100644
--- a/rdp-proxy/manager.py
+++ b/rdp-proxy/manager.py
@@ -71,8 +71,9 @@ def _monitor_loop():
 
 threading.Thread(target=_monitor_loop, daemon=True).start()
 def _anti_idle_loop():
-    """Send Shift key every 30s while xfreerdp is connected to prevent screen lock."""
+    """Move mouse inside xfreerdp window every 30s — works on any remote OS."""
     env = {**os.environ, "DISPLAY": DISPLAY}
+    toggle = False
     while True:
         time.sleep(30)
         with _lock:
@@ -86,17 +87,16 @@ def _anti_idle_loop():
             )
             win_id = r.stdout.decode().strip().splitlines()[0] if r.stdout.strip() else ""
             if win_id:
+                # Чередуем позицию — tiny mouse jiggle внутри окна xfreerdp
+                x, y = (960, 540) if toggle else (961, 541)
                 subprocess.run(
-                    ["xdotool", "key", "--window", win_id, "--clearmodifiers", "shift"],
+                    ["xdotool", "mousemove", "--window", win_id, str(x), str(y)],
                     env=env, capture_output=True, timeout=5,
                 )
-                log.debug("anti_idle shift sent window=%s", win_id)
+                toggle = not toggle
+                log.debug("anti_idle mousemove window=%s pos=%s,%s", win_id, x, y)
             else:
-                subprocess.run(
-                    ["xdotool", "mousemove", "--sync", "960", "540"],
-                    env=env, capture_output=True, timeout=5,
-                )
-                log.debug("anti_idle mousemove fallback")
+                log.debug("anti_idle: xfreerdp window not found")
         except Exception as e:
             log.debug("anti_idle error: %s", e)