diff -u unity-settings-daemon-15.04.1+18.04.20180413/debian/changelog unity-settings-daemon-15.04.1+18.04.20180413/debian/changelog
--- unity-settings-daemon-15.04.1+18.04.20180413/debian/changelog
+++ unity-settings-daemon-15.04.1+18.04.20180413/debian/changelog
@@ -1,3 +1,13 @@
+unity-settings-daemon (15.04.1+18.04.20180413-0ubuntu3) cosmic; urgency=medium
+
+  [ Dariusz Gadomski ]
+  * gnome-settings-daemon/display-name.c:
+    - some vendors record the screen ratio (e.g 16/9) in the EDID instead
+      of including the screen size, detect those cases and display
+      the product name instead of the screen diagonal. (lp: #1755490)
+
+ -- Sebastien Bacher <seb128@ubuntu.com>  Tue, 20 Nov 2018 16:07:31 +0100
+
 unity-settings-daemon (15.04.1+18.04.20180413-0ubuntu2) cosmic; urgency=medium
 
   [ Kai-Heng Feng ] 
only in patch2:
unchanged:
--- unity-settings-daemon-15.04.1+18.04.20180413.orig/gnome-settings-daemon/display-name.c
+++ unity-settings-daemon-15.04.1+18.04.20180413/gnome-settings-daemon/display-name.c
@@ -88,12 +88,23 @@
   return inches;
 }
 
+static gboolean
+has_aspect_as_size(int width_mm, int height_mm)
+{
+    return (width_mm == 1600 && height_mm == 900) ||
+        (width_mm == 1600 && height_mm == 1000) ||
+        (width_mm == 160 && height_mm == 90) ||
+        (width_mm == 160 && height_mm == 100) ||
+        (width_mm == 16 && height_mm == 9) ||
+        (width_mm == 16 && height_mm == 10);
+}
+
 char *
 make_display_name (const MonitorInfo *info)
 {
     const char *vendor;
     int width_mm, height_mm;
-    char *inches, *ret;
+    char *suffix, *ret;
 
     if (info)
     {
@@ -123,22 +134,27 @@
 	height_mm = -1;
     }
     
-    if (width_mm != -1 && height_mm != -1)
+    // are we dealing with aspect coded in EDID size fields?
+    if (has_aspect_as_size(width_mm, height_mm))
+    {
+    	suffix = g_strdup(info->dsc_product_name);
+    }
+    else if (width_mm != -1 && height_mm != -1)
     {
 	double d = sqrt (width_mm * width_mm + height_mm * height_mm);
 
-	inches = diagonal_to_str (d / 25.4);
+	suffix = diagonal_to_str (d / 25.4);
     }
     else
     {
-	inches = NULL;
+	suffix = NULL;
     }
 
-    if (!inches)
+    if (!suffix)
 	return g_strdup (vendor);
 
-    ret = g_strdup_printf ("%s %s", vendor, inches);
-    g_free (inches);
+    ret = g_strdup_printf ("%s %s", vendor, suffix);
+    g_free (suffix);
 
     return ret;
 }