diff --git a/src/radeon_output.c b/src/radeon_output.c
index 28539d4..1acf68c 100644
--- a/src/radeon_output.c
+++ b/src/radeon_output.c
@@ -360,7 +360,7 @@ void RADEONConnectorFindMonitor(ScrnInfoPtr pScrn, xf86OutputPtr output)
     RADEONOutputPrivatePtr radeon_output = output->driver_private;
 
     if (radeon_output->MonType == MT_UNKNOWN) {
-	if (IS_AVIVO_VARIANT) {
+	if (IS_AVIVO_VARIANT || info->IsAtomBios) {
 	    radeon_output->MonType = avivo_display_ddc_connected(pScrn, output);
 	    if (!radeon_output->MonType) {
 		if (radeon_output->type == OUTPUT_LVDS)