diff --git a/src/i830_sdvo.c b/src/i830_sdvo.c
index 4b04994..77495ae 100644
--- a/src/i830_sdvo.c
+++ b/src/i830_sdvo.c
@@ -1100,8 +1100,9 @@ i830_sdvo_get_modes(xf86OutputPtr output)
 {
     ScrnInfoPtr pScrn = output->scrn;
     xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
-    DisplayModePtr modes;
+    DisplayModePtr modes = NULL;
     xf86OutputPtr crt;
+    xf86MonPtr edid_mon = NULL;
 
     modes = i830_ddc_get_modes(output);
     if (modes != NULL)
@@ -1114,10 +1115,16 @@ i830_sdvo_get_modes(xf86OutputPtr output)
      */
     crt = xf86_config->output[0];
     if (crt->funcs->detect(crt) == XF86OutputStatusDisconnected) {
-	return crt->funcs->get_modes(crt);
+	I830OutputPrivatePtr intel_output = crt->driver_private;
+
+	edid_mon = xf86OutputGetEDID(crt, intel_output->pDDCBus);
+    }
+    if (edid_mon) {
+	xf86OutputSetEDID(output, edid_mon);
+	modes = xf86OutputGetEDIDModes(output);
     }
 
-    return NULL;
+    return modes;
 }
 
 static void