diff --git a/src/add-ons/accelerants/intel_extreme/Ports.cpp b/src/add-ons/accelerants/intel_extreme/Ports.cpp
index 961a799f56..f5a5d45e88 100644
--- a/src/add-ons/accelerants/intel_extreme/Ports.cpp
+++ b/src/add-ons/accelerants/intel_extreme/Ports.cpp
@@ -1022,6 +1022,24 @@ DigitalDisplayInterface::_DDCRegister()
 }
 
 
+status_t
+DigitalDisplayInterface::Power(bool enabled)
+{
+	TRACE("%s: %s DDI enabled: %s\n", __func__, PortName(),
+		enabled ? "true" : "false");
+
+	fPipe->Enable(enabled);
+
+	addr_t portRegister = _PortRegister();
+	uint32 state = read32(portRegister);
+	write32(portRegister,
+		enabled ? (state | DDI_BUF_CTL_ENABLE) : (state & ~DDI_BUF_CTL_ENABLE));
+	read32(portRegister);
+
+	return B_OK;
+}
+
+
 bool
 DigitalDisplayInterface::IsConnected()
 {
diff --git a/src/add-ons/accelerants/intel_extreme/Ports.h b/src/add-ons/accelerants/intel_extreme/Ports.h
index db43b98cb4..dc2883f81e 100644
--- a/src/add-ons/accelerants/intel_extreme/Ports.h
+++ b/src/add-ons/accelerants/intel_extreme/Ports.h
@@ -60,7 +60,7 @@ virtual	bool						IsConnected() = 0;
 		::Pipe*						GetPipe()
 										{ return fPipe; };
 
-		status_t					Power(bool enabled);
+virtual	status_t					Power(bool enabled);
 
 		bool						HasEDID();
 virtual	status_t					GetEDID(edid1_info* edid,
@@ -209,6 +209,8 @@ public:
 virtual	uint32						Type() const
 										{ return INTEL_PORT_TYPE_DVI; }
 
+virtual	status_t					Power(bool enabled);
+
 virtual	bool						IsConnected();
 
 virtual status_t					SetDisplayMode(display_mode* mode,