--- mcore-src/trunk/mcore-tools/src/modules/basic-video/graphic.client.class.in	2017/08/04 08:41:23	2829
+++ mcore-src/trunk/mcore-tools/src/modules/basic-video/graphic.client.class.in	2017/08/15 11:22:47	2830
@@ -23,6 +23,7 @@
 	local CONFIG
 	local conf
 	local boardvendor
+	local write_zotac_quirk
 
 	# rebuild 25-gfxcard.conf
 	# always clear the config
@@ -68,21 +69,31 @@
 	# always disable hdmi port on zotac devices atm - fixme make it configurable like alx
 	CONFIG="${MROOT}@@SYSCONFDIR@@/X11/xorg.conf.d/30-fix-zotac.conf"
 	clearconfig
+	write_zotac_quirk=0
 	if [ -e /sys/devices/virtual/dmi/id/board_vendor ]
 	then
 		boardvendor="$(< /sys/devices/virtual/dmi/id/board_vendor)"
 		# decapitalize
 		boardvendor="${boardvendor,,}"
 		case ${boardvendor} in
-			*zotac*)
-				addconfig "# Autogenerated by mcored" 
-				addconfig "Section \"Monitor\""
-				addconfig "	Identifier \"LVDS1\""
-				addconfig "	Option \"Ignore\" \"True\""
-				addconfig "EndSection"
-				;;
+			*zotac*) write_zotac_quirk=1 ;;
 		esac
-	fi	
+	fi
+	# some zotacs has as the board_vendor "filled by o.e.m"
+	# so we search the whole devices subtree for zotac vendor matches
+	# 0x19da="ZOTAC International (MCO) Ltd."
+	if [[ -n $(cat /sys/devices/*/*/subsystem_vendor  | grep 0x19da) ]]
+	then
+		write_zotac_quirk=1
+	fi
+	if [[ ${write_zotac_quirk} = 1 ]]
+	then
+		addconfig "# Autogenerated by mcored" 
+		addconfig "Section \"Monitor\""
+		addconfig "	Identifier \"LVDS1\""
+		addconfig "	Option \"Ignore\" \"True\""
+		addconfig "EndSection"
+	fi
 }
 
 help_graphic_resolution()