diff --git a/black_screen_dim.py b/black_screen_dim.py
index 66e16df..8bde989 100644
--- a/black_screen_dim.py
+++ b/black_screen_dim.py
@@ -129,7 +129,7 @@ class BrightnessController:
             else:
                 idx = t[1]
                 try:
-                    v = sbc.get_brightness(display=idx)
+                    v = sbc.get_brightness(display=idx, method="wmi")
                 except Exception as e:
                     LOG.warning("wmi get display %d failed: %r", idx, e)
                     v = None
@@ -149,7 +149,7 @@ class BrightnessController:
             else:
                 idx = t[1]
                 try:
-                    sbc.set_brightness(0, display=idx)
+                    sbc.set_brightness(0, display=idx, method="wmi")
                     LOG.info("wmi dim display %d", idx)
                 except Exception as e:
                     LOG.warning("wmi dim display %d failed: %r", idx, e)
@@ -168,7 +168,7 @@ class BrightnessController:
             else:
                 idx = t[1]
                 try:
-                    sbc.set_brightness(int(val), display=idx)
+                    sbc.set_brightness(int(val), display=idx, method="wmi")
                     LOG.info("wmi restore display %d -> %s", idx, val)
                 except Exception as e:
                     LOG.warning("wmi restore display %d failed: %r", idx, e)