[gnome-flashback] monitor: check hotplug update mode before getting suggested x/y

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 40500b06f99a0c4edfb5fa7dd64ac6e3b69b18e5
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Jul 10 12:07:27 2020 +0300

    monitor: check hotplug update mode before getting suggested x/y
    
    Based on mutter commit:
    https://gitlab.gnome.org/GNOME/mutter/-/commit/574b49ed95e9a7b42745

 backends/gf-monitor-normal.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/backends/gf-monitor-normal.c b/backends/gf-monitor-normal.c
index 40440d7..c4d97de 100644
--- a/backends/gf-monitor-normal.c
+++ b/backends/gf-monitor-normal.c
@@ -138,6 +138,9 @@ gf_monitor_normal_get_suggested_position (GfMonitor *monitor,
 
   output_info = gf_monitor_get_main_output_info (monitor);
 
+  if (!output_info->hotplug_mode_update)
+    return FALSE;
+
   if (output_info->suggested_x < 0 && output_info->suggested_y < 0)
     return FALSE;