Fixing a bug where xorg doesn't probe for modes on a disconnected output, even if the output is forcibly set to enabled in xorg.conf.
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -1527,17 +1527,19 @@
 	Bool                add_default_modes = TRUE;
 	Bool		    debug_modes = config->debug_modes ||
 					  xf86Initialising;
+	Bool force_enable;
 	enum { sync_config, sync_edid, sync_default } sync_source = sync_default;
-	
+
 	while (output->probed_modes != NULL)
 	    xf86DeleteMode(&output->probed_modes, output->probed_modes);
 
 	/*
 	 * Check connection status
 	 */
+	xf86GetOptValBool(output->options, OPTION_ENABLE, &force_enable);
 	output->status = (*output->funcs->detect)(output);
 
-	if (output->status == XF86OutputStatusDisconnected)
+	if (!force_enable && output->status == XF86OutputStatusDisconnected)
 	{
 	    xf86OutputSetEDID (output, NULL);
 	    continue;