diff --git a/src/i830_debug.c b/src/i830_debug.c
index 7d0c0a0c..f589de73 100644
--- a/src/i830_debug.c
+++ b/src/i830_debug.c
@@ -623,7 +623,7 @@ static struct i830SnapshotRec {
     DEFINEREG(TV_H_CHROMA_59),
 
     DEFINEREG(MI_MODE),
-    DEFINEREG(MI_DISPLAY_POWER_DOWN),
+    /* DEFINEREG(MI_DISPLAY_POWER_DOWN), CRL only */
     DEFINEREG(MI_ARB_STATE),
     DEFINEREG(MI_RDRET_STATE),
     DEFINEREG(ECOSKPD),