--- hw/xfree86/os-support/bus/linuxPci.c.orig	2006-11-20 22:04:35.000000000 +0100
+++ hw/xfree86/os-support/bus/linuxPci.c	2006-11-20 22:06:08.000000000 +0100
@@ -547,7 +547,7 @@
     pPCI = xf86GetPciHostConfigFromTag(Tag);
 
     if (pPCI && (result = PCI_DOM_FROM_BUS(pPCI->busnum)))
-	return result;
+	return result + 1;
 
     if (!pPCI || pPCI->fakeDevice)
 	return 1;		/* Domain 0 is reserved */