[gnome-flashback] display-config: ignore outputs that has no modes

[Alberts Muktupāvels <muktupavels src gnome org>]

commit c375d0f042dd16babf6c930a626e1a69f58f3d85
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Aug 23 13:59:36 2015 +0300

    display-config: ignore outputs that has no modes
    
    https://bugzilla.gnome.org/show_bug.cgi?id=753927

 .../libdisplay-config/flashback-monitor-manager.c  |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnome-flashback/libdisplay-config/flashback-monitor-manager.c 
b/gnome-flashback/libdisplay-config/flashback-monitor-manager.c
index 55470ce..29f80ef 100644
--- a/gnome-flashback/libdisplay-config/flashback-monitor-manager.c
+++ b/gnome-flashback/libdisplay-config/flashback-monitor-manager.c
@@ -1258,7 +1258,7 @@ read_current_config (FlashbackMonitorManager *manager)
 
       meta_output = &manager->outputs[n_actual_outputs];
 
-      if (output->connection != RR_Disconnected)
+      if (output->connection != RR_Disconnected && output->nmode != 0)
         {
           GBytes *edid;