diff --git a/devices/memctrl/platinum.cpp b/devices/memctrl/platinum.cpp
index 4def10c..6704db9 100644
--- a/devices/memctrl/platinum.cpp
+++ b/devices/memctrl/platinum.cpp
@@ -270,7 +270,7 @@ void PlatinumCtrl::write(uint32_t rgn_start, uint32_t offset, uint32_t value, in
                     LOG_F(INFO, "%s: video enabled", this->name.c_str());
                     this->enable_display();
                 } else {
-                    this->blank_display();
+                    this->disable_display();
                 }
                 this->reset_step = 0;
             }
@@ -461,6 +461,11 @@ void PlatinumCtrl::enable_display() {
     this->crtc_on = true;
 }
 
+void PlatinumCtrl::disable_display() {
+    this->crtc_on = false;
+    this->blank_display();
+}
+
 void PlatinumCtrl::enable_cursor_int() {
     if (!(this->swatch_int_mask & SWATCH_INT_CURSOR))
         return;
diff --git a/devices/memctrl/platinum.h b/devices/memctrl/platinum.h
index 68598f9..dec77ed 100644
--- a/devices/memctrl/platinum.h
+++ b/devices/memctrl/platinum.h
@@ -222,6 +222,7 @@ public:
 
 protected:
     void enable_display();
+    void disable_display();
     void enable_cursor_int();
     void update_irq(uint8_t irq_line_state, uint8_t irq_mask);