diff --git a/linux-core/i915_drv.c b/linux-core/i915_drv.c
index c771ab3..8d46686 100644
--- a/linux-core/i915_drv.c
+++ b/linux-core/i915_drv.c
@@ -276,6 +276,7 @@ static int i915_suspend(struct drm_device *dev)
 
 	pci_save_state(dev->pdev);
 	pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
+	pci_read_config_byte(dev->pdev, MGGC, &dev_priv->saveMGGC);
 
 	/* Pipe & plane A info */
 	dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
@@ -397,6 +398,7 @@ static int i915_resume(struct drm_device *dev)
 		return -1;
 
 	pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
+	pci_write_config_word(dev->pdev, MGGC, dev_priv->saveMGGC);
 
 	/* Pipe & plane A info */
 	/* Prime the clock */
diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h
index d08fdf4..68584b4 100644
--- a/shared-core/i915_drv.h
+++ b/shared-core/i915_drv.h
@@ -149,6 +149,7 @@ typedef struct drm_i915_private {
 
 	/* Register state */
 	u8 saveLBB;
+	u16 saveMGGC;
 	u32 saveDSPACNTR;
 	u32 saveDSPBCNTR;
 	u32 savePIPEACONF;
@@ -361,6 +362,7 @@ extern void intel_fini_chipset_flush_compat(struct drm_device *dev);
 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 
 /* Extended config space */
+#define MGGC 0x52
 #define LBB 0xf4
 
 /* VGA stuff */