From d8c5dba4d797fc50d7b2b5855f34e2d2e2ad3e4f Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@guitar.keithp.com>
Date: Thu, 21 Dec 2006 21:20:43 -0800
Subject: [PATCH] When cleaning duplicate modes, make sure ->Last is reset
 correctly.

When removing the very last mode for a monitor, move the ->Last pointer to
the previous list element.
---
 src/i830_xf86Crtc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/i830_xf86Crtc.c b/src/i830_xf86Crtc.c
index bb6c8691..0c482a2e 100644
--- a/src/i830_xf86Crtc.c
+++ b/src/i830_xf86Crtc.c
@@ -437,7 +437,11 @@ xf86PruneDuplicateMonitorModes (MonPtr Monitor)
 	{
 	    next = clone->next;
 	    if (xf86ModesEqual (master, clone))
+	    {
+		if (Monitor->Last == clone)
+		    Monitor->Last = clone->prev;
 		xf86DeleteMode (&Monitor->Modes, clone);
+	    }
 	}
     }
 }