功能：完善2K串流、显示恢复与输入优化

tools/inject-input-burst.py

@@ -0,0 +1,26 @@
+"""X11 test only: inject 32 alternating left/right clicks into the bench window."""
+import ctypes
+
+x11 = ctypes.CDLL("libX11.so.6")
+xtest = ctypes.CDLL("libXtst.so.6")
+x11.XOpenDisplay.argtypes = [ctypes.c_char_p]
+x11.XOpenDisplay.restype = ctypes.c_void_p
+x11.XFlush.argtypes = [ctypes.c_void_p]
+x11.XCloseDisplay.argtypes = [ctypes.c_void_p]
+xtest.XTestFakeMotionEvent.argtypes = [ctypes.c_void_p, ctypes.c_int,
+                                     ctypes.c_int, ctypes.c_int, ctypes.c_ulong]
+xtest.XTestFakeButtonEvent.argtypes = [ctypes.c_void_p, ctypes.c_uint,
+                                     ctypes.c_int, ctypes.c_ulong]
+display = x11.XOpenDisplay(None)
+if not display:
+    raise RuntimeError("X11 unavailable")
+try:
+    for index in range(32):
+        x = 640 if index % 2 == 0 else 1920
+        assert xtest.XTestFakeMotionEvent(display, -1, x, 600, 0)
+        assert xtest.XTestFakeButtonEvent(display, 1, 1, 0)
+        assert xtest.XTestFakeButtonEvent(display, 1, 0, 0)
+    x11.XFlush(display)
+finally:
+    x11.XCloseDisplay(display)
+print("Injected 32 clicks, expected L,R alternating; final pointer on R")