From eb56837dfb44c941d5e2bb4b44149be1efbe334f Mon Sep 17 00:00:00 2001
From: Alexander von Gluck IV <kallisti5@unixzen.com>
Date: Thu, 12 Nov 2015 16:18:45 -0600
Subject: [PATCH] intel_extreme: Disable lvds panel_fitter for now

---
 src/add-ons/accelerants/intel_extreme/Ports.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/add-ons/accelerants/intel_extreme/Ports.cpp b/src/add-ons/accelerants/intel_extreme/Ports.cpp
index 66172ab213..facc709efa 100644
--- a/src/add-ons/accelerants/intel_extreme/Ports.cpp
+++ b/src/add-ons/accelerants/intel_extreme/Ports.cpp
@@ -347,6 +347,15 @@ LVDSPort::SetDisplayMode(display_mode* target, uint32 colorMode)
 	}
 
 	// TODO: Fix software scaling?
+
+	// Disable PanelFitter for now
+	addr_t panelFitterControl = PCH_PANEL_FITTER_BASE_REGISTER
+		+ PCH_PANEL_FITTER_CONTROL;
+	if (fDisplayPipe->Index() == INTEL_PIPE_B)
+		panelFitterControl += PCH_PANEL_FITTER_PIPE_OFFSET;
+	write32(panelFitterControl, (read32(panelFitterControl) & ~PANEL_FITTER_ENABLED));
+	read32(panelFitterControl);
+
 #if 0
 	// For LVDS panels, we actually always set the native mode in hardware
 	// Then we use the panel fitter to scale the picture to that.