2 files changed, 16 insertions, 9 deletions
diff --git a/quantum/rgb_matrix/animations/pixel_rain_anim.h b/quantum/rgb_matrix/animations/pixel_rain_anim.h
index 9d63f451e2..26cd73b578 100644
--- a/quantum/rgb_matrix/animations/pixel_rain_anim.h
+++ b/quantum/rgb_matrix/animations/pixel_rain_anim.h
@@ -16,13 +16,9 @@ static bool PIXEL_RAIN(effect_params_t* params) {
         if (!HAS_ANY_FLAGS(g_led_config.flags[led_index], params->flags)) {
             return;
         }
-        if (random8() & 2) {
-            rgb_matrix_set_color(led_index, 0, 0, 0);
-        } else {
-            HSV hsv = {random8(), random8_min_max(127, 255), rgb_matrix_config.hsv.v};
-            RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
-            rgb_matrix_set_color(led_index, rgb.r, rgb.g, rgb.b);
-        }
+        HSV hsv = (random8() & 2) ? (HSV){0, 0, 0} : (HSV){random8(), random8_min_max(127, 255), rgb_matrix_config.hsv.v};
+        RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
+        rgb_matrix_set_color(led_index, rgb.r, rgb.g, rgb.b);
         wait_timer = g_rgb_timer + interval();
     }
 
diff --git a/quantum/rgb_matrix/rgb_matrix_drivers.c b/quantum/rgb_matrix/rgb_matrix_drivers.c
index d66fc801dd..6de20ac8a5 100644
--- a/quantum/rgb_matrix/rgb_matrix_drivers.c
+++ b/quantum/rgb_matrix/rgb_matrix_drivers.c
@@ -426,11 +426,17 @@ const rgb_matrix_driver_t rgb_matrix_driver = {
 
 // LED color buffer
 LED_TYPE rgb_matrix_ws2812_array[RGB_MATRIX_LED_COUNT];
+bool     ws2812_dirty = false;
 
-static void init(void) {}
+static void init(void) {
+    ws2812_dirty = false;
+}
 
 static void flush(void) {
-    ws2812_setleds(rgb_matrix_ws2812_array, RGB_MATRIX_LED_COUNT);
+    if (ws2812_dirty) {
+        ws2812_setleds(rgb_matrix_ws2812_array, RGB_MATRIX_LED_COUNT);
+        ws2812_dirty = false;
+    }
 }
 
 // Set an led in the buffer to a color
@@ -448,6 +454,11 @@ static inline void setled(int i, uint8_t r, uint8_t g, uint8_t b) {
     }
 #    endif
 
+    if (rgb_matrix_ws2812_array[i].r == r && rgb_matrix_ws2812_array[i].g == g && rgb_matrix_ws2812_array[i].b == b) {
+        return;
+    }
+
+    ws2812_dirty                 = true;
     rgb_matrix_ws2812_array[i].r = r;
     rgb_matrix_ws2812_array[i].g = g;
     rgb_matrix_ws2812_array[i].b = b;