diff -Nru a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
--- a/drivers/char/agp/generic.c	2005-01-25 14:34:24 -05:00
+++ b/drivers/char/agp/generic.c	2005-01-25 14:34:24 -05:00
@@ -328,9 +328,9 @@
 	info->chipset = SUPPORTED;
 	info->device = bridge->dev;
 	if (check_bridge_mode(bridge->dev))
-		info->mode = bridge->mode & AGP3_RESERVED_MASK;
+		info->mode = bridge->mode & ~AGP3_RESERVED_MASK;
 	else
-		info->mode = bridge->mode & AGP2_RESERVED_MASK;
+		info->mode = bridge->mode & ~AGP2_RESERVED_MASK;
 	info->mode = bridge->mode;
 	info->aper_base = bridge->gart_bus_addr;
 	info->aper_size = agp_return_size();