diff -Naur xorg-server-1.1.1/hw/xfree86/os-support/linux/lnx_acpi.c xorg-server-1.1.1-closing-lid-doesnt-crash-X/hw/xfree86/os-support/linux/lnx_acpi.c
--- xorg-server-1.1.1/hw/xfree86/os-support/linux/lnx_acpi.c	2006-07-05 20:31:41.000000000 +0200
+++ xorg-server-1.1.1-closing-lid-doesnt-crash-X/hw/xfree86/os-support/linux/lnx_acpi.c	2006-10-26 14:22:58.000000000 +0200
@@ -73,13 +73,15 @@
 #endif
 
 	notify = strtok(NULL, " ");
-	notify_l = strtoul(notify, NULL, 16);
+	if (notify) notify_l = strtoul(notify, NULL, 16);
+	else        notify_l = 0;
 #if 0
 	ErrorF("notify: 0x%lx\n",notify_l);
 #endif
 
 	data = strtok(NULL, " ");
-	data_l = strtoul(data, NULL, 16);
+	if (data) data_l = strtoul(data, NULL, 16);
+	else      data_l = 0;
 #if 0
 	ErrorF("data: 0x%lx\n",data_l);
 #endif